3500 User`s M., sec 2, Installation
Contents
1. 7 46 7 37 File Location Dialog Box aa 7 47 7 38 Password File Location Dialog Box 7 48 7 39 Print Regions of Interest Dialog Box 7 48 7 40 Enter Password Dialog Box o ooooo 7 49 7 41 Password Maintenance Dialog Box 7 49 7 42 Add a New User Dialog Box o o o 7 49 7 43 Modify User Dialog Box 0 aaa 7 50 7 44 Window Menu id es ead Ye TREE Sed 7 51 T43 ALA uos rel rta rp ell e Pee iba 7 52 7 46 WinREMS Help Home Page oo oo oooooooo 7 52 7 47 About WinREMS Dialog Box oo oo oooooooo 7 53 TABLES Table Page 5 1 Test Conditions us sacs 4 Excmo dde ed Le o de 5 3 6 1 Standard TTP Recommendations 6 2 6 2 Acquisition Setup Generating Calibration Dosimeters 6 3 6 3 Acquisition Setup Calibrating the Reader 6 5 6 4 Acquisition Setup Calibrating Dosimeters 6 7 TA Readino Types oc katt vede ve e deut e I OS NGA AG 7 12 7 2 Calibration Factors by Read Mode 7 21 Page 0 7 Model 3500 Manual TLD Reader with WinREMS Page 0 8 3500 W 0 0602 Operator s Manual BLANK PAGE Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 0 9 Operator s Manual Writing conventions To maintain consistency throughout this and all Saint Gobain Crystals amp Detectors manuals certain writing conventions have been followed These are listed belo2. POWDER STAND THUMB SCREW CLAMP BLOCK NY ASSEMBLY 10 LOCK WASHERS 10 32 X 3 4L BUTTON HEAD CAP SCREW REW Figure 2 2 Powder Dispenser Installation Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 2 7 Operator s Manual 2 0 Installation cont d 2 7 Initial Operation This section will guide you through the initial operation of the system In order to avoid redundancy in detail this section will reference other sections which provide detailed information for various circumstances After completing Installation Sections 2 5 Hardware and 2 3 Software perform the following steps to start the system for the first time 1 Power up If you have not already done so turn on the Reader and the PC Double click on the WinREMS icon 2 Initiate Workspace The Main Menu will appear with only three items on it Click on File Open Workspace to view the Open Workspace Dialog Box Ifa file name appears with a WRW extension this is a workspace click on it to open the workspace If you did not create a workspace in the installation process you will need to establish a workspace To create a new workspace from the Main Menu click on File New Workspace and follow the instructions on the New Workspace Wizard Then open the workspace as describe in the previous paragraph 3 PMT Charge When the Reader is first turned on the sensitive input to the I F Co
3. Electromagnetic Interference Will operate satisfactorily in the presence of EMI comparable to that produced by a 5 watt transceiver operating between 130 and 170 MHz and positioned no less than 30 cm 12 inches from the Reader Shock Will withstand a I cm drop onto a concrete surface Installation Category Pollution Degree 2 Normally only non conductive pollution occurs Occasionally however a temporary conductivity caused by condensation must be expected Overvoltage Category Category II Portable equipment with local level voltages Model 3500 Manual TLD Reader with WinREMS Page 2 2 3500 W O 0602 Operator s Manual 2 0 Installation cont d 2 2 PC Requirements The minimum requirements for a Personal Computer used for controlling the 3500 Reader and its operating software WInREMS are as follows e 100 compatibility with Intel Pentium Personal Computer P5 120 processor e 32MBRAM e 4 Gigabyte Hard Drive e Serial Port COMI available for the Reader e LPT1 Parallel Port available for printer e Any PC compatible keyboard One 3 1 2 diskette drive e One CD ROM drive e SVGA Monitor e Windows NT 4 0 with Service pack 4 Windows 95 or Windows 98 Note that these are minimum requirements normally a pentium based PC with considerably higher specifications is supplied The PC to Reader communication architecture is very robust with error checking handling
4. After the PMT Noise Reading is complete a message box will appear reminding you to take a Reference Light Reading Pull the Drawer all the way out so the Drawer Field reads Open This is the position for the Reference Light Reading Press the READ Button on the front of the Reader Read a Dosimeter Note that after initiating the read process with the Start Button on WinREMS all subsequent reads are started by pressing the READ Button on the instrument This is because the WinREMS Start Button initiates the process at the top of the Chipset File the READ Button continues the readings with the next line on the Dosimeter Chipset File Place a TL sample in the recess in the planchet and close the Sample Drawer Press the READ Button to start the TL data acquisition The glow curve will be plotted on the screen as it is acquired When the cycle has been completed the curve on the computer screen will be re plotted to full scale and the numeric results will appear on the left side of the screen The screen will look similar to that shown in Figure 3 1 For a detailed explanation of the data on the screen see Section 3 2 Results Screen 6 Continue Readings After a reading is completed a message box will appear with the message Instrument is cooling When the Planchet temperature drops to the higher of 50 C or the Preheat Temperature the message box will disappear You may then pull the Drawer out and remove th
5. At any time before exiting from a TTP you may remove any changes made during the current editing session by clicking on the Cancel Button 4 Save and Return After reviewing the TTP and making any necessary changes click on OK to save the changes 4 2 Acquisition Setup 1 Get Acquisition Setup Dialog Box From the WinREMS Main Menu select Read Acquisition Setup or click on the ACQ Button on the tool bar This will bring the Enter Password Dialog Box into view Entering a valid User Name and Password will allow you access to the Acquisition Setup Dialog Box in edit mode Figure 7 24 The parameters on this screen control many aspects of the operation of the Reader as it reads the dosimeters You may change any of these fields without affecting the TTP calibration values Select Acquisition Setup If you intend to use an existing setup click on the arrow in the Title Field and select the setup you wish to use If you wish to create a new setup select new Setup and edit the Title to a new name This will be the identification of the setup that you will create The Date Edited and Edited by Fields will be filled automatically using the computer s internal clock and the name entered in the Username Field of the Enter Password Dialog Box Select Acquisition Mode The Mode field defines the purpose for which the dosimeters will be read It is important to set this correctly as the data cannot be used for an
6. Figure 4 1 Typical Time Temperature Profile Model 3500 Manual TLD Reader with WinREMS Page 4 2 3500 W O 0602 Operator s Manual 4 0 Tutorial cont d 4 1 Time Temperature Profile Setup This section describes the procedure for editing a TTP Note Before editing a TTP remember that modifying certain fields on a calibrated TTP will change it to an uncalibrated state 1 Get Time Temperature Profile Setup Dialog Box From the WinREMS Main Menu select Read TTP Setup or click on the TTP Button on the toolbar This will bring the Enter Password Dialog Box into view Entering a valid User Name and Password will allow you access to the Time Temperature Profile Setup Dialog Box in edit mode view Figure 7 25 The settings in this box will determine how long and to what temperature your dosimeters will be heated Select TTP Click on the arrow in the Title Field to review a list of available TTPs select the one appropriate for your needs Edit TTP Review the TTP to confirm that it is appropriate for the dosimeters you have to read Remember that any changes to the Preheat and Acquire segments will change a calibrated TTP to uncalibrated as will changing the Gain Setting Those fields which you may change without affecting the calibration are the Title Regions of Interest roil roi2 etc Anneal Temperature and Anneal Time See Section 7 5 3 TTP Setup for a detailed description of each field on this screen
7. 8 European Notice cu ese ea Vr da Be tne aida 0 9 1 0 System Overview 1 1 General Description naa NAG a Wet SEEN TS TG 1 1 12 WINREMS a eet KAG PARU GR ESL A 1 2 LG WDOSIMELEES rss Fa 8 ces Oe tri 1 2 1 4 Instrument Performance Specifications 1 3 1 5 Dosimetric Performance Specifications 1 4 1 6 Instrument Physical Specifications 1 4 D ACES SOLES cr a nh oe celta NANG PAPA KNA 1 5 2 0 Installation 2 1 Operating Requirements a 2 1 2il UES E O 2 1 A A RAY ae we Ra Wa a red 2 1 22 PE REQUIEM eter PANA rc ERR EN E PCS 2 2 BS SOMA areni a nuh Mesh T b ede Rees 2 2 2A Password roux bs i e ICA Ee d ep 2 2 2 5 HardWare coxa PANA tel exce RUE Roto ota 2 3 2 6 Powder Dispenser Installation o 2 6 2 7 vial Operation a ha BA na A 2 7 3 0 General Instructions 0 0 0 0 0 eee 3 1 3 1 MInREMS ODpGEatlOIa s 04508 GWA yew kain 3 1 3 1 1 Mouse Support 4 si ad Masons doy ae Mia en 3 1 3 1 2 Highlighting Recordss 940 9 a ert 3 1 Bala P ssWw rd us osx a E he Soe ae ee 3 1 3 1 4 Initiating WinREMS 000 5 3 1 3 1 5 RBxutn sWInRBEMS e wa oie Selon Wa we S NR 3 1 3026 IT scalp 5i a ees see bd RUNE nC 3 2 3 2 Results Screen adoran aan eoe UP ba ews 3 3 3 3 TL Materials 323 1 THandlilg sane ma ASA ARR SUY WEG GA 3 4 39 2 Identification scope Fie Gade eae kal nre Es 3 4 4 0 Tutorial 5 ak a Sa GGWA esed 4 1 4 1 Time Temperature Prof
8. WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury WARNING NOTICES ALWAYS APPEAR IN UPPERCASE BOLD LETTERS e CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices CAUTION notices always appear in bold italicized letters The definition of these safety warnings is according to ANSI Z535 4 The style ofthe warnings bold italicized etc is SGCD RMP s In addition to the above we have added the following warning e NOTE indicates a situation which has the potential for erroneous data collection loss of electronic data or damage to equipment but which does not directly affect the safety of the operator with respect to this product The responsibility for any safety consequences as a result of erroneous data lies solely with the operator NOTE notices always appear in italics Model 3500 Manual TLD Reader with WinREMS Page 0 10 3500 W 0 0602 Operator s Manual SAFETY SYMBOLS The following symbols may appear on the Reader Caution ISO 3864 No B 3 1 This Caution risk of electric shock ISO symbol designates possible hazards both 3864 No B 3 6 This symbol designates a mechanical and electrical high voltage connection or an exposure to working voltage This symbol designates this instrument Caution Hot Surface IEC 417 No as being
9. a Windows based PC connected through an RS 232 C serial communication port The dosimetry functions are divided between the Reader and the Harshaw WinREMS Windows Radiation Evaluation and Management software on the PC Al dosimetric data storage instrument control and operator inputs are performed on the PC transport subsystem control gas and vacuum controls and signal acquisition and conditioning are performed in the Reader Sufficient redundancy is maintained that dosimetric data is never lost in the event of a power failure WinREMS controls the operations of the Reader including storing the operating parameters Time Temperature Profiles TTPs Reader Calibration Factors RCFs and Element Correction Coefficients ECCs The flexible design of WinREMS enables the user to automatically calibrate the reader and dosimeters in a wide variety of dosimetric units or to work directly in nanocoulombs and do his own calibration through a custom spreadsheet program For example for radiation therapy and planning the system can be calibrated in Grays and the dosimeters tracked primarily by Patient Identification For personnel radiation protection monitoring the primary data tracking may be by dosimeter and Employee ID and the instrument calibration can be in Sieverts Other calibration units and identification combinations are available Asthe Reader generates TL data the host computer stores it until a reading is complete
10. retrieves and processes them and presents the data in meaningful forms These processes are directed through a series of menus and dialog boxes which are described in detail in Section 7 0 WinREMS Reference This section provides you with the information necessary to start the system navigate through the screens enter data get help and exit the WinREMS software 3 1 1 Mouse Support WinREMS supports the use of a Microsoft or compatible mouse Terms used commonly in this manual in describing the operation of a mouse are as follows Click means to push down on the left mouse button and release it immediately without moving the mouse pointer Double Click means to push down on the left mouse button and release it immediately twice in quick succession without moving the pointer Drag means to click and hold the left mouse button down while moving the pointer across the screen to a new location and release the button Right Click means to push down on the rght mouse button and release it immediately without moving the pointer Hover means to hold the pointer in one place on the screen In a field designed to respond to hovering additional data will appear 3 1 2 Highlighting Records On many screens which list records for example Figures 7 12 and 7 13 the records can be selectively highlighted for additional processing by clicking on them Clicking to select records requires that the cursor be i
11. the 3500 If the Dispenser was ordered with your Model 3500 Reader the installation is essentially complete requiring only adjustment Proceed to Step 4 If the Powder Dispenser was purchased separately from the 3500 Reader it will come as a kit The installation procedure is as follows See Figure 2 2 1 Open the kit and verify the contents 2 Fasten the Clamp Block Assembly to the bottom of the 3500 Reader using the buttonhead cap screws and the lock washers Use a 1 8 Allen wrench to tighten the screws leaving a little play between the Clamp Block Assembly and the 3500 3 Insert the Thumb Screw Assembly leaving it very loose Attach the Powder Dispenser Stand by sliding the stand into the slot provided by the Clamp Block Assembly attached to the bottom of the instrument Tighten the Thumb Screw Assembly Set the Powder Dispenser Assembly onto the Stand Pin Align Powder Dispenser Trough with the center of the planchet depression Adjust alignment if necessary using either the Thumb Screw Assembly or the stand adjustment Set Screw found at the back of the Clamp Block Assembly When aligned the Powder Dispenser Trough will clear the drawer by 1 16 to 1 8 MODEL 3500 f PL 24862 y Vi POWDER DISPENSER ASSEMBLY
12. time it Voltage Fuse Rating amp Type should always be set correctly as all TLD los pala iov Pio n C records are date time stamped 8 Connect nitrogen supply F Pushthe fuse holding assembly back into place The white plastic node should now indicate the proper input voltage G Note This unit is rated 140 VA Place the Reader in its operating location NITROGEN G A E PRESSURE SENSOR ADJUST S RESET Attach one end ofthe 3mm 1 8 flexible tubing to the nitrogen inlet port Figure 2 1 on the 3500 and the other end to the nitrogen supply regulator assembly The supply should provide a pressure of 2 kg cm 30 psig 20 The flow rate capability must be at least 2 5 liters min 5 0 scfh which equates to 30 on the Brooks Sho Rate Flow Meter optionally available with the instrument 120V 2A 240V 1A Figure 2 1 Back Panel Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 2 5 Operator s Manual 2 0 Installation cont d 2 5 Hardware cont d Note This requirement is different for different Harshaw RMP instruments Nitrogen should remain flowing through the system at all times This is because nitrogen is used to purge the PMT Assembly keeping moisture out of this area The flow rate may be reduced to 10 on the Flow Meter to minimize nitrogen usage 9 Connect to line power After ensuring that the On Off switch on the back panel is in the OFF position conne
13. your system completely installed and operational you may begin with Sections 3 0 General Instructions and 4 0 Tutorial to familiarize yourself with the general operation of the Reader Section 5 0 Quality Assurance to understand the quality assurance measures available in the system and Section 6 0 Calibration Procedures to calibrate your Reader for production use e If you are a new operator coming into a system that is fully operational you will initially benefit most from Sections 3 0 General Instructions and 4 0 Tutorial Model 3500 Manual TLD Reader with WinREMS Page 0 2 3500 W O 0602 Operator s Manual FOREWORD cont d Overview cont d e If you are familiar with this model Reader but need occasional reference to specific fields or procedures then Section 7 0 WinREMS Reference will serve as a reference for you possibly in conjunction with Section 8 0 Index to help you find the exact topic you need The following are brief descriptions of each of the sections in this manual Section 1 0 System Overview gives a general description of the Model 3500 Reader its operating principles and optional configurations the dosimeters it reads and a summary of its performance specifications Section 2 0 Installation describes the necessary environment and procedure for setting up the instrument Section 3 0 General Instructions is an introduction to the instrument controls and the WinREMS software and the gene
14. Archive Restore Functions o ooooo oo o 7 5 7 1 5 Print Functions oo ha La pa ee aa 7 5 7 1 6 Recent Files A oli Asap NG aN na Ee rd 7 5 Ta E ea Bad Sarton RRs t tru ca ta ae ere nG tod E 7 5 Die ANC Rego oe RU ERE es AS DICIT ET TITIO S 7 6 7 3 1 Response Database ecco su Ya Wank Pg GPs 7 6 Tad ECC Database 2s mpa ie m ER ee ET etia 7 14 L33 Log Database ec 7 16 7 3 4 Electronics QC Database 7 17 IF INENG paa Er 7 18 Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 0 5 Operator s Manual TABLE OF CONTENTS cont d Section Page 7 4 1 Glow CUDVBS a us doe eate a Ses ER a d eode 7 18 7 4 2 Regions Of Interest sty disse ed La xe Oe std 7 18 7 4 3 Computed Exposures 2 2 24 25 2248 29 0 SEE e 7 18 7 4 4 First Previous Next Last Record 7 18 TAS TOBA tbe eid bra 7 18 7 4 6 StatusBaT oooooooooooooo ooo ooo 7 18 TOs Read A AAP 7 19 TO A A N aNg 7 19 7 5 2 Acquisition Setup la esee ve d YHP ROO ox hen 7 22 TOI TIPS rd ti bue aT p 7 26 7 5 4 Patient Setup o o M Baa EG kla padi NAL YE kubo 7 31 O SEP wc kaa ctetu RS ES 7 32 T0 ROUGH 225i nc we hnc Vet iss 7 33 Mb CAMDEN paan minh Dade BKA HEPA GA NAN Tak Dala 7 34 7 6 1 Generate Calibration Dosimeters 7 34 7 6 2 Reader Calibration oy 402 e edd alee Pas ERR Sd 7 3 7 6 34 Dosimeter Calibration 0 000008 7 40 7 7 QC TL Electronics DOC a VC USO da 7 43 Mates A Gand Pol
15. Establish Chipset File The Title Field displays the name of the Chipset file as set on the Files Tab of the Workspace Properties Dialog Box Section 7 9 1 3 Files To edit a line in the Chipset File click on the extreme left column gray on any line This will place a pencil icon in that spot indicating that line is editable Add delete and edit lines as necessary to ensure that there is a line for every dosimeter you will be reading 3 Enter Patient Information If you are using a Patient Information File when you click on the Patient ID block an arrow will appear Click on this arrow to see a list of established Patient IDs and select one Enter any relevant information in the Treatment and Location blocks Note that all three fields described in this step are optional Enter Dosimeter and TTP Information Move to the Dosimeter ID Column and enter the Identification Code of each dosimeter you will read This ID is vital if you are applying ECCs and must be the same as was used when the dosimeters were calibrated If you are not using ECCs you may enter any temporary identification you wish Move to the TTP Column and select the TTP that you wish to use by clicking on the down arrow Edit Additional Lines Repeat Steps 3 through 5 for each position on the disk which will contain a TL chip Accept and Exit When you have completed all the necessary editing click on the asterisk in the extreme left c
16. Saint Gobain Crystals amp Detectors aT mn Telephone 440 248 7400 Radiation Measurement Products Toll Free 800 472 5656 6801 Cochran Road SAINT GOBAIN Fax 440 349 6581 Solon Ohio 44139 USA AAA MEIPATA NA http www detectors saint gobain com CRYSTALS 4 DETECTORS Model 3500 Manual TLD Reader with WinREMS Operator s Manual Publication No 3500 W O 0602 004 Release Date June 26 2002 Part No M 26739 Rev C Saint Gobain Ceramics amp Plastics Inc ISO 9001 Quality System Certified Saint Gobain Crystals amp Detectors ATM Telephone 440 248 7400 Radiation Measurement Products Toll Free 800 472 5656 6801 Cochran Road SAINT GOBAIN Fax 440 349 6581 S http www detectors saint gobain com selon ON 3199 USA CRYSTALS amp DETECTORS P 9 Model 3500 Manual TLD Reader with WinREMS Operator s Manual Publication No 3500 W 0 0602 004 Release Date June 26 2002 Part No M 26739 Rev C Saint Gobain Ceramics amp Plastics Inc ISO 9001 Quality System Certified Publication Number 3500 W 0 0602 004 Replaces and supersedes 3500 W 0 0201 003 Original Issue December 1999 NOTICE Saint Gobain Crystals and Detectors SGCD reserves the right to make changes to any product and does not assume any liability arising from use of any product or component described herein The information presented in this publication has been carefully checked
17. U 1234567 89 1 234 MgU 12345678 9 12 34 MgU 123456789 123 4 MgU 1234567890 1234 MgU In any given unit three ranges are defined base unit base unit x1 000 and base unit x1 000 000 The displayed value is adjusted so that it is greater than one and less than one thousand if possible However if the range reaches the x1 000 000 level a value greater than or equal to one thousand will be displayed up to the five character limit of 99999 note that the trailing decimal point will be dropped and five digits will be displayed for values greater than 9999 Similarly if the value is less than 1 at the base unit level it will be displayed as a decimal value less than one Both these conditions are shown in the above table The following table details the unit labels for the three different scaling ranges given various calibration units as well as for the uncalibrated response unit of nanoCoulombs Base unit x1 x1000 x1000000 nanoCoulombs nC uC mC generic units gU kgU MgU milliRoentgens mR R kR millirads mrad rad krad millirems mrem rem krem microSieverts uSv mSv Sv microGrays uGy mGy Gy milliSieverts mSv Sv kSv milliGrays mGy Gy kGy Sieverts Sv kSv MSv Grays Gy kGy MGy Roentgens R kR MR Model 3500 Manual TLD Reader with WinREMS 3500 W 0 0602 Page 3 3 Operator s Manual 3 0 General Instructions cont d 3 2 Results Screen The results screen Figure 3 1 displays the results of the TLD Reading as it is being
18. and is believed to be reliable however no responsibility is assumed for inaccuracies Furthermore the information does not convey to the user any patent or other license of Saint Gobain or others Specifications are subject to change without notice Saint Gobain Ceramics amp Plastics Inc reserves all copyrights to this material It may not be duplicated without express prior written permission Part Number Revision 26739 C El By lefi YS z ate ga Technical Content Approved By C Copyright Saint Gobain Ceramics amp Plastics Inc 2002 All rights reserved Printed in U S A Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 0 1 Operator s Manual FOREWORD Introduction This manual provides you with all the information you need to properly operate the Harshaw Model 3500 Manual TLD Reader when controlled through WinREMS Windows based Radiation Evaluation and Management System WinREMS is SGCD Radiation Measurement Products RMP proprietary operating system operating on a personal computer and connected to the Reader via a serial port This manual is released concurrently with WinREMS version PL 26732 8 0 0 0 You may confirm the version number of your system on the Help About screen Section 7 11 3 About This Operator s Manual is structured so that a novice can use it to become acquainted with the instrument at a comfortable pace yet the more experienced user will fi
19. ay be recalled for further analysis The Reader will continue to take Readings 3 Enter Physicist s Information after this alarm is triggered Enter any relevant information about the patient s condition in the Comment Field Accept and Exit and the name ofthe responsible Physicist Click on OK to accept the values you in the Physicist Field have entered At any time before exiting from this dialog box you may remove all 4 Saveand Return changes made during the current editing session by clicking on the Cancel Button Click on the OK Button to record the information Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 4 5 Operator s Manual 4 0 Tutorial cont d 4 4 Chipset File Setup This section defines the procedure for setting a Chipset File The Chipset File identifies the TTP to be used to read each dosimeter enables the operator to enter the Dosimeter ID for each chip and links the response record with the Patient File For a more detailed description of any item see Section 7 5 5 Chipset Setup Note that establishing a Chipset File is optional for Model 3500 You can enter the Dosimeter ID and TTP manually as you are reading dosimeters See Section 7 5 1 Start For purposes of this tutorial continue with establishing the Chipset File Procedure 1 Get Chipset Setup Dialog Box From the Main Menu select Read Chipset Setup to bring the Chipset Setup Dialog Box Figure 7 27 into view 2
20. channel read 8 Instrument status information is displayed in the bottom left corner Gas flow status Off Cooler Temperature 15 C Drawer position closed Status Reading Dosimeter 123456 05 11 00 13 08 55 1A 123456 DemoCurve 3834 nC 2371 ROM 26 11 ROI2 64 66 ROIS 5 805 ROI4 ECC RCF 14 n Cooling 12306 859 Y Intensity nA 8 p Gas Off Cooler 15 C Drawer Closed Status Reading dosimeter 123456 Figure 3 1 2 2anggsadwa 100 Channel Results Screen Model 3500 Manual TLD Reader with WinREMS Page 3 4 3500 W O 0602 Operator s Manual 3 0 General Instructions cont d 3 3 TL Materials 3 3 1 Handling TL elements in solid form e g chips rods cubes and disks can be transferred to and from the planchet with manual or vacuum tweezers For powder a dispenser is available that allows you to dispense 15 mg of powder LiF onto the planchet remain hot for a short time after it has been read Do not remove the element from the planchet until the temperature is below 50 C Do not touch the TL element while it is being removed from the planchet Caution The TL element will f The loading procedure for the chips rods cubes and disks is the same while the procedure for the powder differs Chips Rods Cubes and Disks Pull the Drawer open so that the planchetis accessible As shipped in its standard configuration the 3500 includes a planchet w
21. compliant with the CE standards 5041 The above symbol designates an listed on the European Notice page of this accessible hot surface with which the operator section page 0 11 could come in contact Please follow all safety warnings both on the Reader and in the manuals Failure to operate the Reader in the manner specified by the manufacturer may impair the safety protections built into the equipment Protective conductor Terminal IEC 417 No 5019 This symbol designates the ground terminal for the mains protective ground The wiring should be green yellow in color Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 0 11 Operator s Manual EUROPEAN NOTICE Model 3500 Products with the CE Marking comply with the EMC directive 89 336 EEC issued by the Commission of the European Community Compliance with the directive implies conformity to the following European standards EN 50011 1991 Limits and methods of measurement of radio disturbance characteristics of industrial scientific and medical ISM radio frequency equipment Emission standard EN50082 1 1992 Electromagnetic compatibility Generic immunity standard IEC 1000 4 2 1994 IEC 1000 4 3 1994 IEC 1000 4 4 1994 IEC 601010 1 1990 Safety requirements for electrical equipment for measurement control and laboratory use Note In order for the instrument to comply with the standards as tested the cable lengths Power and Serial may not exceed th
22. ct the three prong power cord to the back panel Figure 2 1 Insert the other end of the power cord into the line power supply or uninterruptible power supply UPS if used 10 Turn on power Push the On Off switch into the ON position The instrument should start and the green POWER ON status lamp on the front panel should come on and remain lit All lights will light briefly during power up or reset The initial hardware setup is now complete If WinREMS has been installed on the controlling PC the Model 3500 Manual Reader is ready to run If WinREMS has not been installed see Section 2 3 Software for installation instructions For initial operating instructions see Section 2 7 Initial Operation 11 Fill out Troubleshooting Form Take a moment now to fill out the top portion of the Troubleshooting Documentation Form in Appendix A The initial hardware setup is now complete If WinREMS has been installed on the controlling PC the Model 3500 Reader is ready to run If you wish to install a Powder Dispenser proceed to Section 2 6 Powder Dispenser Installation if not you may proceed to Section 2 7 Initial Operation for initial operating instructions Model 3500 Manual TLD Reader with WinREMS Page 2 6 3500 W O 0602 Operator s Manual 2 0 Installation cont d 2 6 Powder Dispenser Installation The optional Powder Dispenser provides consistent delivery of a set amount 15 mg of TL powder to the planchet of
23. d It then transmits the data to WinREMS in the form of 200 response points forming a Glow Curve WinREMS displays the curve as it is received and then stores the data for future computation and reporting WinREMS also performs a variety of calibration and Quality Assurance operations The user may create store and select from any number of Time Temperature Profiles TTP and Acquisition Setup Parameters A separate Reader Calibration Factor RCF can be established for each TTP to assure accurate conversion of data from charge to dosimetric units This simple architecture allows users the flexibility and economy of using an existing computer provides for the simple addition of optional functions such as Dose computation algorithms and for convenient updating of application software Through WinREMS any model Harshaw TLD Reader may be installed as part of a network of readers with or without a central server and may be networked with a complete Harshaw Health Physics Record System HPRS Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 1 3 Operator s Manual 1 0 System Overview cont d 1 3 Dosimeters Saint Gobain Crystals amp Detectors RMP produces TL chips in a variety of materials in various sizes of chips rods and disks all of which can be read on the Model 3500 Available materials include TLD 100 TLD 200 TLD 400 TLD 500 TLD 600 TLD 700 TLD 100H TLD 600H and TLD 700H Available sizes inclu
24. de the following e Chips 3 2mm 1 8 square face from 0 15mm 0 006 to 0 89mm 0 035 e Rods 1mmdia x 6mm long 1mm dia x 3mm long 1mm x 1mm x 6mm 1mm x 1mm x 1mm e Disks 5mm 0 20 dia from 0 38mm 0 015 to 0 89mm 0 035 The Model 3500 Reader can also read TLD powders 1 4 Instrument Physical Specifications The 3500 has the following dimensions and weight excluding any external connections 1 e power cord nitrogen tubing and RS 232 cable DIMENSIONS Height 31 cm 12 2 inches Width 32 cm 12 5 inches Depth 47 cm 18 5 inches Weight 25 kg 56 pounds Model 3500 Manual TLD Reader with WinREMS Page 1 4 3500 W O 0602 Operator s Manual 1 0 System Overview cont d 1 5 Instrument Performance Specifications This section details the electronic performance specifications of the Reader Dynamic Range Seven decades Warm up Time 30 minutes Reference Light Stability Short term Less than 0 596 variation based on 1 standard deviation of 10 consecutive readings performed at a constant temperature Long term 0 5 to 110 hours 296 maximum deviation TTP Reproducibility El C Linearity Less than 1 deviation Dark Current Less than 50 uGy Cs equivalent based on standard sensitivity 3 2mm 1 8 sq x 0 89mm 0 035 thick TLD 700 chips Stability Better than 1 0 uGy based on one standard deviation of ten consecutive measurements using standard se
25. dings Fach type of reading has an Interval and a Range The Interval Field sets the number of dosimeters that will be read between a successive PMT or Reference Light readings The system will also take a PMT Noise and a Reference Light Reading at the beginning and end of each group of dosimeters as defined by the Group ID The Range Field sets the range of acceptable values for the reading If a reading falls outside of this range the reader sends a warning message to the screen The PMT Noise or Dark Current is a reading taken with no dosimeter or any other light source under the PMT Assembly Its purpose is to measure electronic noise in the system and determine if there are any light leaks in the system The Ref Light reading is taken with the Reference Light directly in view of the PMTs This light provides a consistent light source to detect any drift in the system or accumulation of dirt on the PMT Lenses A setting of 0 in either the PMT Noise or Ref Light Interval Field will result in the system not taking any readings of that type For this tutorial enter 10 in both Interval Fields Set Reading Limits The parameters in this group box define three actions that can be taken at unusually high reading levels How you set these will depend on the level of readings you anticipate Each limit will set a flag in the database that can be viewed using the Search Function Section 7 3 1 Response Database These fields a
26. e TL sample Note that it is important to wait until the message box disappears for the following reasons a to avoid burns to the operator b to prevent putting the next chip on a hot planchet which would remove a portion of the glow curve c pressing the READ button before the temperature is below the required level will result in an error condition and a warning message To continue reading TL samples repeat Steps 5 and 6 If the message Please read PMT noise and Test Light now appears return to Step 4 Complete Read Process When all the readings in the Chipset File are completed the message Perform PMT noise and Test Light Readings will appear again After taking these readings bring up the Read Dosimeters Dialog Box and Click on the Done Button to complete the read process Model 3500 Manual TLD Reader with WinREMS Page 4 8 3500 W O 0602 Operator s Manual BLANK PAGE
27. es ides ctetu e ss 7 44 TC Workspace A Wan WG Sede 7 45 eS A et tro ba haa a LA LOAD a pa dto aai 7 45 7 9 2 Password Maintenance 7 49 TO ANO AO 7 51 GA AG a a O AS 7 52 Tall Help Lope do ux ena 7 52 7 11 2 Version Information Vcc viva n 7 53 TALS ANDONG Le ose Wa Reo DES Rae ES 7 53 8 0 Index ies uM Rx E E RO x 8 1 Appendix A Troubleshooting Documentation A 1 B ASCH Export Pile rra ia A 3 Model 3500 Manual TLD Reader with WinREMS Page 0 6 3500 W O 0602 Operator s Manual ILLUSTRATIONS Figure Page 1 1 Model 3500 Manual TLD Reader 1 1 a4 Back Panel 208 meets oct aai Ba a a e d baee es 2 4 2 2 Powder Dispenser Installation 2 6 a Results SOI PAPA 3 3 4 1 Typical Time Temperature Profile 4 4 2 Read Dosimeters Dialog Box o o oooooo 4 6 6 1 Internal Calibration ofa TLD System 6 11 TE uBHO MUI 2 eye mdr PRA 7 1 7 2 Main Menu and Tool Bar 0 000005 7 1 7 3 Workspace Wizard dise AUG pa BAWA he tex 7 2 7 4 Import TTP Log Report Box 0a 7 3 7 5 Export Response Records Dialog Box 7 4 Mo Bat Menu a adhara dean spp RPM eb Ns 7 5 Ab Search MOBU voice KA ABA NGA HE NS 7 6 7 8 Search Response Database Dialog Box 7 6 7 9 Response Record Glow Curve View 7 9 7 10 Channel Data Floating Box o oo oooooooo 7 10 711 Response Record Compu
28. es you must first change the Workspace Properties Start Read Process Click on the Start Button to start the Read process The plot area of the computer screen will clear and the Read Dosimeters Dialog Box will automatically minimize You may bring the Read Dosimeters Dialog Box back at any time by clicking on the Go Button You would do this for example to insert a comment or stop the readings before the Chipset File is completed Take PMT and Reference Light Readings A message box will appear with the message Perform PMT noise reading Figure 7 21 To take a PMT Noise Reading pull the Drawer open until the Drawer Field on the screen near the is used and you enter the Dosimeter ID and TTP Chipset C Manual Control Mode manually For purposes ofthis tutorial select Chipset The file name in the Chipset Field reflects the name in the Chipset File Field on the Comment Files Tab in the Workspace Continue Stop Done Help Figure 4 2 Read Dosimeters Dialog Box Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 4 7 Operator s Manual 4 0 Tutorial cont d 4 5 Reading TL Materials cont d bottom left corner displays between Note that this message will remain until the Drawer is almost all the way out however for good PMT Noise readings the Drawer should be in far enough that the Planchet is not visible Press the READ Button on the Reader
29. generated The information on this screen is described in the following paragraphs This center portion ofthis screen displays the full glow curve in solid blue with a red line to indicate the temperature of each point If Regions of Interest have been defined they are identified by color coded vertical lines Above the glow curve area is a line of information about the dosimeter record examples from Figure 3 1 Date and time of thereading 05 11 00 13 08 55 TTP Number 1 Acquisition Mode A Dosimeter ID 123456 and Group ID DemoCurve In a box to the left of the curve the dosimetric information is displayed The first value is the total integral 98 94 expressed in the units generated by the RCF if applied If no RCF was applied the integral is expressed Bi Data Acquisition in nanocoulombs nC If the ECC Quality Factor or Background were applied in the Reading they will also be incorporated in the total integral Immediately below the total integral are the integrals for as many Regions of Interest ROI as were selected 2 371 etc expressed in the same units as the total integral Immediately below the ROIs are the ECC and RCF values if they were applied The next line shows the Intensity of the peak channel in nanoamperes 14 The last four lines in the lower box show the current status of four reading parameters TTP Phase Cooling gas temperature 129 C high voltage 85 and current in the last
30. hen TL elements are calibrated ECCs generated for either Calibration or Field dosimeters the calibration value is indexed in the ECC File by Dosimeter ID Also when a dosimeter is read with ECC applied the ECC is determined by Dosimeter ID One convenient way to identify the dosimeters is to store them in serially numbered disks and create a Dosimeter Identification that includes the disk number and position number on the disk e g D07C10 to indicate Disk 7 Position 10 In addition Chipset File may be created and retained for each disk thus eliminating the need for entering the Dosimeter ID each time a dosimeter is read Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 4 1 Operator s Manual 4 0 Tutorial This tutorial takes a new user through a typical series of daily activities on an established system It is thorough in its procedural instructions but not comprehensive in scope You should be familiar with Section 3 0 General Instructions before you attempt to perform the operations in this section This tutorial leads you step by step through the process of reading a group of dosimeters Although the 3500 reads several different shapes of materials the procedure is the same for all materials so this section will refer to chips but the steps are the same for rods micro cubes disks and powders This section will guide you through the complete process of reading a set of TL Dosimeters including
31. ile Setup 4 2 42 X6quisition Setups daa A e 4 2 Model 3500 Manual TLD Reader with WinREMS Page 0 4 3500 W O 0602 Operator s Manual TABLE OF CONTENTS cont d Section Page 4 3 Patient File SUP A A RE Seem 4 4 4 4 Chipset File Setup kna erbe RC teeth E cei 4 5 4 5 Reading TL Materials 0 0 0 0 0000 4 6 5 0 Quality Assurance eee 5 1 S Dily AA APA 5 1 5 1 1 Record Retention id 2a PAPA VERE ue SA 5 1 5 1 2 Reader Operational Checks 5 1 5 1 3 Reader Calibration factor RCF 5 2 5 1 4 Background Noise 2 a NA RR es 5 2 5 nime OU kA mec cd eres ro PA AR tta 5 2 Sud IBNEISNOISG Sus PANGA PS oe d oma etu rer Eo t 5 2 5 42 Reference La E Ne eos 5 3 6 0 Calibration Procedures 6 Introduction pews A aaa 6 1 6 1 Purpose E aden M Ete 6 1 6 1 2 Procedure Overview eoe rice y Saco URS 6 1 6 2 Prepare Dosimeters 4 oce Pueri o ERES ORAE 6 2 6 3 Generate Calibration Dosimeters 6 3 6 4 Calibrate Reader iaa a OC Pas Ye EXE YS 6 5 6 5 Calibrate Dosimeters c2 34 Heese X id ds 6 7 6 6 Calibration Methodology 6 6 1 Element Correction Coefficients 6 9 6 6 2 Reader Calibration Factors 6 12 7 0 WinREMS Reference 0 0 7 1 A zB Sr iau lana agn KANG heu P VI Ede 7 1 Jalal Workspace CARS MAA ESI JN Views VC ME 7 1 PAZ IMPONG o PARE SP aUe ute SEG ES a eS UESUP ees 7 2 RES EXPO KG id se eee 7 4 7 1 4
32. imentally determined using Harshaw standard sensitivity LiF Mg Ti chips TLD 700 Radiation Types and Energies Photon Greater than 1 keV Neutron Thermal to 100 MeV Beta Greater than 70 MeV Measurement Range 10 uGy Imrad to 1 Gy 100 rad Linear 1 Gy 100 rad to 20 Gy 2 000 rad Supralinear Tissue Equivalence Nearly tissue equivalent Batch Uniformity 30 maximum deviation from the batch mean without application of Element Correction Coefficients Fading using total integral Without thermal treatments or fading correction less than 20 in 3 months With Harshaw fading correction algorithm glow curve batch deconvo lution or application of preheat less than 5 in 3 months Repeatability Less than 2 variation based on one standard deviation for 10 sequential measurements at 1 mGy 100 mrad 17Cg Minimum Detectability Less than 10 uGy 1 mrad based on 2 26 x standard deviation of 10 repeated evaluations of an unexposed dosimeter Residual TL Signal Less than 0 2 of reading over the dose range without annealing Model 3500 Manual TLD Reader with WinREMS Page 1 6 3500 W O 0602 Operator s Manual 1 0 System Overview cont d 1 7 Accessories There are numerous accessories available from Saint Gobain Crystals amp Detectors RMP to assist users of the 3500 they include e Personal Computers to control the 3500 Reader e External Printers for printing reading re
33. ith a 6mm 1 4 square depression This planchet is suitable for most chip powder and cube TL elements If disks or rods are to be used special optional planchets should be installed in the Reader Using vacuum tweezers place the chip or rod in the center of the planchet depression Verify that the chip or rod is lying flat otherwise an artificially low TL reading will result due to uneven element heating Close the sample drawer slowly to avoid shifting of the element Powder Clear the planchet depression using a vacuum tool Ensure sufficient powder is loaded in the dispenser Pull the drawer open and swing the dispenser into position to locate the dispenser channel directly over the center of the planchet depression Hold the dispenser steady transfer the powder onto the planchet and gently close the sample drawer This will put 15 mg of powder in the planchet depression 3 3 2 Identification Because dosimeters are not visually labeled maintaining Dosimeter ID becomes the responsibility of the user and requires caution in handling the Dosimeters Similarly there is no way for the instrument to distinguish between dosimeters thus it is also the user s responsibility to identify the dosimeter for the Reader The user must first establish a unique identification code for each dosimeter in the system This identification code is maintained in the Dosimeter ID Field of the Chipset File See Section 7 5 5 Chipset Setup W
34. justing screw The Reader uses contact heating with a closed loop feedback system that produces linearly ramped temperatures accurate to within 1 C to 400 C in the standard Reader or 600 C with the High Temperature option The Time Temperature Profile TTP is user 1 0 System Overview cont d Figure 1 1 Model 3500 Manual TLD Reader Model 3500 Manual TLD Reader with WinREMS Page 1 2 3500 W O 0602 Operator s Manual 1 1 TLD Reader cont d defined in three segments Preheat Acquire and Anneal each with independent times and temperatures Toimprove the accuracy of low exposure readings and to extend planchet life the 3500 provides for nitrogen to flow around the planchet By eliminating oxygen in the planchet area the nitrogen flow eliminates the unwanted oxygen induced TL signals Nitrogen is also routed through the Photomultiplier Tube PMT chamber to eliminate moisture caused by condensation An electronic Reference Light is built into the PMT Housing for monitoring the performance of the instrument It is used asa part of a daily QC check and may be read at operator specified intervals during the normal reading process If a supply of nitrogen is not available clean dry air as produced by the Harshaw Model 4488 Dry Air Generator may be used as the heating medium for the TLD cards 1 2 WinREMS Application Software The data architecture of the system includes both a host computer in the Reader and
35. led by no less than two persons at all times The Reader may be lifted by grasping it under the frame at the sides or at the front and rear The Reader which measures approximately 31 cm 12 2 inches high by 32 cm 12 5 in ches wide and 47 cm 18 5 inches deep requires a minimum of 8 cm 3 inches clearance at the rear and along the right side for ventilation and accessibility to the On Off switch and power cord To maintain CE compliance this cord should not exceed 3 meters 10 feet Unpack the workstation components Carefully remove the 3500 Reader and other items from their shipping containers and check the contents against your order and the shipping papers Inspect parts for any obvious damage If damage is evident contact the carrier for a shipment inspection Retain all packing materials waybills etc to verify claim Then contact your RMP field representative for assistance in repair or replacement of damaged items Select line voltage and fuse The instrument can be powered by 100 or 120 VAC at 60 Hertz or 220 or 240 VAC at 50 Hertz The current line voltage setting is indicated by a white plastic node protruding through one of the four holes labeled 100 120 220 and 240 in the fuse housing cover Check the existing line voltage setting If the setting does not match the available AC line voltage change it according to the following procedure A Ensure that the line power cord is not connected
36. mend that you remove the initial system system combination since leaving it active would give access to the protected features to anyone who reads this manual Password addition and removal is discussed in Section 7 9 2 Password Maintenance Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 2 3 Operator s Manual 2 0 Installation cont d 2 5 Hardware This section describes procedures for setting up the Reader installing the software and operating the system for the first time Caution It is important that you follow these instructions If the equipment is installed incorrectly or used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired This unit must be operated by trained personnel only The following procedure will ready the 3500 Reader for use 1 Establish working location The 3500 Reader is designed for bench top mounting and requires a connection to the controlling PC Locate a space on a surface that is within a comfortable working distance from the PC The RS 232 cable provided with the 3500 is 6 feet long If the PC is to be located more than 6 feet from the 3500 then a longer cable will be required To avoid any data transfer problems the cable should be no longer than 50 feet To maintain CE compliance this cable should not exceed 3 meters 10 feet Caution The Reader weighs approximately 25 kg 58 Ibs It should be hand
37. n the extreme left column at which time the normal pointer will turn into a black horizontal arrow You may then use Control click and Shift click as you would in any Windows function that shows lists of files Clicking on the box at the very top of the column will select all records You may also use the arrow keys to move the pointer and use the space bar as a toggle to select deselect individual records 3 1 3 Password A password is necessary to perform certain functions in WinREMS There are two levels of password protection An Administrator has access to all functions of WinREMS An Operator has access to all functions except Password Maintenance An Operator without a password can read dosimeters and perform most functions but cannot edit the Acquisition Setup the TTP Setup or the Workspace Properties Changes to the operator password list are discussed in Section 7 9 2 Password Maintenance 3 1 4 Initiating WinREMS A WinREMS icon has been installed on the desktop screen Simply double click on the WinREMS icon or use the Windows Start Menu to bring up the WinREMS Main Screen This screen will have only three items on the Main Menu Click on File and open a workspace either new or existing to bring up the complete Main Menu Model 3500 Manual TLD Reader with WinREMS Page 3 2 3500 W O 0602 Operator s Manual 3 0 General Instructions cont d 3 1 WinREMS Operation cont d 3 1 5 Exiting WinREMS T
38. nd that it is a valuable reference This manual is not intended however to be used to introduce an operator to the equipment without training This training may come from Saint Gobain Crystals amp Detectors or an experienced user You also should have the Technical Service Manual Publication No 3500 0 S with your Model 3500 Reader This manual provides troubleshooting and repair instructions and engineering drawings to help a trained service technician to properly maintain and repair the Reader Overview The manual is structured to give you the information you need to become familiar with the instrument for your initial use and to be a continuing reference as you become more familiar with the instrument and take greater advantage of its capabilities Depending on your situation with respect to the system certain sections will be more helpful than others All users should read Section 1 0 System Overview first e If you have just received your Model 3500 Reader and will be installing and starting up the system yourself you should read Section 2 0 Installation for installation instructions Section 3 0 General Instructions and 4 0 Tutorial to familiarize yourself with the general operation of the Reader Section 5 0 Quality Assurance to understand the quality assurance measures available in the system and Section 6 0 Calibration Procedures to calibrate your Reader and dosimeters for production use e If you have received
39. nd the corresponding flags are defined as follows Halt instrument sets a level beyond anything that would normally be expected if this level is ever exceeded the reader will sound an audible alarm Model 3500 Manual TLD Reader with WinREMS Page 4 4 3500 W O 0602 Operator s Manual 4 0 Tutorial cont d 4 2 Acquisition Setup 4 3 Patient File Setup The section describes the procedure for and immediately stop taking readings This alarm indicates either a problem with the Reader or a dose level which may demand immediate attention The record is flagged with an h Reread dosimeter sets a level at which the dosimeter is reread The purpose of this alarm is to ensure that all TL signal establishing patient records This feature is optional the primary key for tracking all dosimeter readings is Dosimeter ID Procedure 1 Get Patient Setup Dialog Box From the Main Menu select Read Patient Setup to bring the Patient Setup Dialog Box into view Figure 7 26 is removed from the dosimeter 2 Identify Patient WinREMS creates a new record for each To work with an established patient click read and flags it with an r on the arrow in the Patient ID Field and select from the list To create a new Mark with warning flag sets a level patient record click on the New Button which if exceeded will flag the record Enter the patient s ID and name Select with an m on the database so that it Gender m
40. nsitivity 3 2mm 1 8 sq x 0 89mm 0 035 thick TLD 700 chips High Voltage Stability after a warm up period of at least 30 minutes 0 005 per hour 0 02 over 8 hours The displayed high voltage may vary by 2 volts during acquisition because of the High Voltage A D Monitor Circuit TTP Capabilities Preheat temperature O to 400 C Preheat time 0 to 999 sec Acquire temperature 0 to 400 C Acquire time 10 to 300 sec Acquire rate 1 to 50 C sec Anneal temperature 0 to 400 C Anneal time 0 to 999 sec Cycle Time Dependent on TLD material size and type and on corresponding TTP For example a chip can be processed in about forty seconds using any ofthe Low Dose Default TTPs Table 6 3 and no printing Planchet Types Chip 6 5mm 1 4 sq recess Use for chips 3 2mm 1 8 sq x 0 25mm 010 to 0 89mm 0 035 thick Cubes 1mm 0 039 per side and for powders Rod 1 5mm 0 06 x 7 6mm 0 30 recess Use for rods 1mm 0 039 dia and up to 6mm 0 236 long Disks 16mm 5 8 diam recess User for disks 3 2mm 1 8 dia x 0 25mm 0 010 to 0 89mm 0 035 thick a equals room temperature 2 limited to 60 sec max when Acquire temperature is 350 C or higher Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 1 5 Operator s Manual 1 0 System Overview cont d 1 6 Dosimetric Performance The following performance char acteristics have been exper
41. nverter may be charged positively This would be indicated by a value of 0 pA in the PMTube current display on the Results Screen Figure 3 1 Only after a sufficient negative charge is collected from the PMT output will the Reader be ready for operation Since the negative charge collected is very small when the Read Drawer is closed this may take several minutes To decrease the waiting time pull the drawer out to the Reference Light Position for a few seconds until the PMT value is a positive number If a reading is attempted before the PMT is properly charged the operator is prompted to pull the Drawer out to the Reference Light Position When the Reader is ready the PMT current display will show a positive value Model 3500 Manual TLD Reader with WinREMS Page 2 8 3500 W 0 0602 Operator s Manual BLANK PAGE Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 3 1 Operator s Manual 3 0 General Instructions This section describes how to operate the WinREMS software how to load TL materials into the Reader and provides general instructions in the use of the Model 3500 TLD Reader with WinREMS including initiating and exiting from the system 3 1 WinREMS Operation The Windows Radiation Evaluation and Management System WinREMS consists of a series of programs and databases that direct the operation of the Reader through the 3500 Host computer receive dosimetry records from the reader then stores
42. o exit from WinREMS simply click on the X Box in the upper right corner or go to the Main Menu and click on File Exit Be sure to save your current workspace 3 1 6 Unit Scaling The Harshaw TLD Readers are capable of operating over a dynamic range of seven decades although it is seldom that one installation will use all this capability Because of the many environments in which these Readers are operated it is also necessary to report in a variety of dosimetric units Itis also generally desirable to report data in numbers ranging from 1 to 1 000 In order to accomplish these three objectives simultaneously it is necessary to perform scale changes within the software There are a number of standard prefixes which are used to scale units The following table details the prefixes in most common usage prefix Abbreviation Scale pico p 10 nano n 10 micro u 105 milli m 10 Kilo k 10 Mega M 10 Note that there is a potential for confusion with the use of M Lower case m is milli while upper case M is Mega Given this understanding of these prefixes and scale factors the following table defines the appropriate scaling over a very wide range of values for a hypothetical response value to four significant digits calibrated in generic units gU Value gU Displayed 0 123456789 1234 gU 1 23456789 1 234 gU 12 3456789 12 34 gU 123 456789 123 4 gU 1234 56789 1 234 kgU 12345 6789 12 34 kgU 123456 789 123 4 kg
43. olumn to indicate that you have completed editing the last line Click on the OK Button to close the dialog box and record the data Model 3500 Manual TLD Reader with WinREMS Page 4 6 3500 W O 0602 Operator s Manual 4 0 Tutorial cont d 4 5 Reading TL Materials The following is the procedure used to read a TL element 1 Start Reader Be sure that the Reader has been turned on with nitrogen flowing for 30 minutes to bring the PMT temperature down to its operating level 2 Edit the Read Dosimeters Dialog Box From the Main Menu select Read Start or click on the GO Button on the tool bar This will bring up the Read Dosimeters Dialog Box Figure 4 2 with the Response Screen in the background Enter a Group ID This may be up to 4 sixteen characters ASCII letters numbers or the underscore character that will be a name that will uniquely identify the group of readings that will be produced Select the Acquisition Setup created in Section 4 2 Acquisition Setup by clicking on the arrow to view the list of available Read Dosimeters fel X setup profiles The Contro Mode box Read Batch of Dosimeters with offers you two choices for how to control the Reader In Chipset Mode the dosimeter ID and the TTP are determined from the Chipset File In the Chipset m3500 Manual Mode no Chipset File Properties Dialog Box Figure 7 32 No other files can be selected from this field To change Chipset Fil
44. ral principles of its use This section also describes the proper precautions for handling dosimeters Section 4 0 Tutorial is a procedural instruction designed to guide the novice user through several basic operations ofthe Reader and WinREMS Section 5 0 Quality Assurance collects all the quality assurance features of the system in one place for your convenience These include daily quality control and online quality checks Section 6 0 Calibration Procedures describes in detail the procedures for generating a set of Calibration Dosimeters calibrating the instrument and calibrating all the dosimeters in the system The methodology behind the overall calibration system is also discussed Section 7 0 WinREMS Reference is a comprehensive reference source for all screens and field entries in the system Section 8 0 Index is an alphabetical listing of the subjects covered in this manual to help you find any information you need The Appendix contains two documents The first is a software troubleshooting form fill the top of this out as part of your initial setup The second explains the ASCII Export function which may require some programming expertise to use Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 0 3 Operator s Manual TABLE OF CONTENTS Section Page Writing Conventions ive uet a x RU RIA e na 0 7 Safety Warnes cuore iare tah FR ee BE ey eee ah rS 0 7 Safety Symbols oes cae A Cok RUSSE 0
45. ree meters Model 3500 Manual TLD Reader with WinREMS Page 0 12 3500 W 0 0602 Operator s Manual BLANK PAGE Model 3500 Manual TLD Reader with WinREMS 3500 W 0 0602 Page 1 1 Operator s Manual 1 0 System Overview The Harshaw Model 3500 Manual TLD Reader is a PC driven manually operated tabletop instrument for thermoluminescent dosimetry TLD measurement It economically provides both high performance and high reliability and it complies with the latest International Standards Organization ISO requirements The 3500 reads one dosimeter per loading and accommodates a variety of TL configurations including chips disks rods and powder The system consists of two major components the TLD Reader and the Windows Radiation Evaluation and Manage ment System WinREMS software resident on a personal computer PC which is connected to the Reader via a serial communications port 1 1 TLD Reader The Reader s basic external components include a front control panel consisting of three LED status lights and a Read pushbutton a sample drawer assembly that features an interchangeable planchet and a built in Reference Light for periodic monitoring of Reader performance and a drawer for neutral density filters The rear panel houses a voltage selectable power input module with fuse access an instrument Reset button a fitting for nitrogen gas tubing an RS 232 C serial communication port and a recessed pressure sensor ad
46. reporting and a retransmit feature to virtually eliminate data loss 2 3 Software If you purchased a PC from Saint Gobain Crystals amp Detectors RMP as part of your system the computer is delivered with the WinREMS software installed and configured for your system In this case upon booting the computer a WinREMS icon will appear on your desktop allowing direct access to the WinREMS System See Section 3 1 4 Initiating WinREMS for startup instructions Your shipment will also include a CD ROM or a set of distribution diskettes for back up installation should this ever be necessary Replacement software for any WinREMS installation may be requested from your Saint Gobain Crystals amp Detectors RMP service representative If you are installing WinREMS yourself insert the CD in the CD ROM drive Click on the Windows Start Menu select Settings Control panel and click on Add Remove Programs Now click on the Install Button in the upper part of the dialog box An Install Wizard will appear and guide you through the installation process The instructions on the Install Wizard will guide you through all of the choices you must make 2 4 Password A password is necessary for access to some of the dialog boxes in the system The software is initially configured with a user named system and a password of system Afterthe system is operating satisfactorily and you have added at least one User ID Password combination we recom
47. reviewing the Time Temperature Profile TTP establishing the Acquisition Setup creating a Chipset File establishing a patient record and acquiring data A TTP defines the temperature to which the TL material is heated as a function of time Figure 4 1 It is defined in three segments Preheat Acquisition and Anneal Preheat establishes a common starting point for all dosimeters in a group and may be used to eliminate the faster fading low temperature peaks Acquisition is the segment during which the dosimetric data is acquired and the glow curve is generated The Anneal segment is used to hold the dosimeter at a high temperature to ensure that all the TL signal is removed Each TTP may be calibrated by generating a Reader Calibration Factor RCF to convert the raw data in nanocoulombs to meaningful dosimetric units seiverts rads etc The Acquisition Setup defines several other parameters used in reading dosimeters The Chipset File is an index that identifies each dosimeter by its position in the disk while defining the TTP to be used and connecting the dosimeters to patient information if desired After you have mastered this section you will need to read Section 7 0 WinREMS Reference to gain a complete understanding of all the capabilities of WinREMS TEMPERATURE Eds RAMP RATE MAX TEMP 4 RAMP RATE L PREHEAT ACQUISITION ANNEAL AMBIENT F 3n AMBIENT TIME SECONDS
48. sults parameters etc e Annealing Ovens including both single set point and programmable types e External Irradiatorsto prepare dosimeter materials for use in Reader calibration e Powder Dispensers to aid in dispensing accurate amounts of dosimetric powders e Micro Vacuum Cleaners to aid in clean ing sample drawers cleanout drawers as well as any accidental dosimetric powder spills Tweezers both vacuum and mechanic ally actuated to assist with placement of dosimetric materials chips rods cubes and disks Dosimeter Holding Trays that provide excellent storage and staging for dosimetric materials Neutral Density Filters to facilitate the reading of highly exposed materials by reducing the intensity of the light arriving at the PMT Nitrogen Pressure Regulators and Hoses to feed nitrogen gas into the 3500 Reader unit Additional Planchets to accommodate alternate forms of TL materials e g disks and rods Spare Parts Kits that contain backup parts for the instrument Uninterruptible Power Supplies UPSs to ensure the continuity of the power supplied to the 3500 Reader and its controlling PC during a loss of line power Applications Software for instrument and dosimeter calibration Computerized Glow Curve Deconvolution collecting storing and manipulating data for dose algorithms and quality assurance and diagnostics programs Mettler Balance interface to record powder sample weight
49. ted Exposure View 7 11 7 12 Reading Type Floating Box cms GA AA 7 12 7 13 Response Records Regions of Interest View 7 13 7 14 Search ECC Database Dialog Box 7 14 7 15 ECC Database Display satis ERE IRSE 7 15 7 16 Search Log Database Dialog Box 7 16 TAT Log Database View Screen 4 4 34 oco ta ds 7 17 TAS View Men s 1a idee pe sete s BA Laud PEN kla ed s 7 18 TAD Read Mert enrian oio se tae eae tenu E Ata 7 19 720 Read Dosimeters Dialog Box 7 19 721 PMT Reading Reminder Box 7 20 722 Dosimeter ID Dialog Box oo oooooomooo 7 20 7 23 Add Comments Dialog BOX 0aaa 7 21 7 24 Acquisition Setup Dialog Box 7 22 7 25 Time Temperature Profile Setup Dialog box 7 26 7 26 Patient Setup Dialog BOX 2044 Sh KANA SOR 7 31 727 Chipset Setup Dialog Box co 7 32 7 28 Calibration Menu ees eR Ae ed 7 34 7 29 Generate Calibration Dosimeters Dialog Box 7 35 Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Operator s Manual ILLUSTRATIONS cont d Figure Page 7 30 Reader Calibration Dialog Box 7 37 7 31 Dosimeter Calibration Dialog Box 7 41 T32 DEM o PP De ee 7 43 7 33 Sample Tools Mem caridad 7 44 7 34 Workspace Mella ras ao iaa Vans 7 45 7 35 Instrument Options Dialog Box 7 45 7 36 Database Location Dialog Box
50. to the Reader s power input panel B Pry off the fuse holding assembly from the Reader There is a small notch on the left end of the assembly where a small flat bladed instrument can be inserted for prying See Figure 2 1 Model 3500 Manual TLD Reader with WinREMS Page 2 4 3500 W 0 0602 Operator s Manual 2 0 Installation cont d 6 2 5 Hardware cont d Change Neutral Density Filter If you intend to use a Neutral Density C Using care not to damage the plug in board pull it out of the housing with needle nose pliers Change the orientation of the white plastic piece and the board to match the required line voltage The board s arrow for the desired voltage should point Filter you should install it in place of the standard clear glass filter delivered in the instrument For detailed instructions see Section 4 3 2 1 Cleanout Neutral Density Filter Drawer in your Model 3500 Technical Service Manual Publication No 3500 0 8 towards the center of the Reader 7 Connect Reader to PC when the board is replaced Attach the RS 232 cable to the 25 pin connector on the rear panel Figure 2 1 D Re insert the board of the 3500 and to the COMI port on the controling PC Be sure to use the E Insert a fuse of a rating appropriate connector s captive screws to ensure the for the supplied voltage according to integrity of data communications the following table You should check the setting of the PC s clock calendar at this
51. w for your convenience When instructions are given for using DOS or any other operating system the following conventions are used e When a specific operating system command file name directory name or environment variable is used in the text it is shown in small caps for example C NVLAP NVLAP EXE e When a general operating system command file name directory name or environment variable is used in the text it is shown in italics for example drive path filename e When a specific example of an operating system entry is given it 1s offset from the paragraph and shown in Courier font for example gt copy a asc When describing Harshaw software such as NET REMS the following conventions are used e Screen names Pull Down Menu Selections and Field Names are always capitalized for example Main Menu Screen or Input File Field e Data Field Entries and Multiple Choice pop up Field Selections are enclosed in single quotes for example neutron Keyboard keys other than letters numbers and punctuation are shown enclosed in pointed brackets for example lt Ctrl gt Safety Warnings There are also certain conventions for safety warnings They are divided into three categories and defined as follows e DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury DANGER NOTICES ALWAYS APPEAR IN BOLD ITALICIZED UPPER CASE LETTERS e
52. with TLD data Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 2 1 Operator s Manual 2 0 Installation 2 1 Operating Requirements To perform as specified in Section 1 4 Performance Specifications the 3500 Reader must be operated within the following parameters 2 1 1 Utilities The Model 3500 Reader requires the following utilities to operate Electrical Supply selectable 110 or 120 volt AC 21046 60 Hz 220 or 240 volt AC 41046 50 Hz Transient voltage frequency immunity and leakage current specification per UL 544 for non patient equipment Nitrogen Supply Quality Purified 99 995954 dry Pressure 1 5 to 3 kg cm 20 to 40 psi Flow Rate Regulated to 130 L H 5 SCFH Use of a needle valve and flowmeter are recommended to achieve this flow rate Part No 500002 provides the appropriate valves for this function 2 1 2 Environment Transient Voltage Use of commercially available surge protection devices is recommended to protect the sensitive electronics of both the Reader and the controlling PC Static Electricity Protection Use of an anti static mat is recommended Operating Temperature 15 C to 40 C Storage Temperature 10 C to 60 C Humidity Functions within specification after 24 hour exposure to 90 humidity and subsequent 6 hour recovery with use of the nitrogen supply Ambient Light Exposure Can withstand up to 1 000 Lux with cover on Reader
53. y purpose other than what is set in this field For purposes of this tutorial select Read Dosimeters Model 3500 Manual TLD Reader with WinREMS 3500 W O 0602 Page 4 3 Operator s Manual 4 0 Tutorial cont d 4 2 Acquisition Setup cont d 4 Set Apply Factors In this box you may set any of four Calibration Factors to be applied Setting the ECC Element Correction Coefficient requires that your dosimeters have been calibrated setting the RCF Reader Calibration Factor requires that your TTP has been calibrated If you set either calibration factor to be applied and the required calibration is not present an error message will be sent and the dosimeter will not be read For specific information about how these factors are applied see Section 7 5 3 TTP Setup Field Dosimeters may be read with or without either calibration factor For purposes of this tutorial do not check Background or Quality Factor Set Export The fields in this box enable you to export a data file in ASCII format as data is being acquired For purposes of this example set Format to None Set Print You may print the results data as it is generated Click on the arrow to view the selections which are None Glow Curves Regions of Interest and Computed Exposure Set PMT Noise and Reference Light These two groups of Fields are available for the purpose of checking the consistency and accuracy of the rea
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