APD Prim Electronics - DESY Photon Science
Contents
1. 7 2 74 5 cotta atte 811 suena A A a a aimee tare 7 4 8 DETECTOR DRAWING cece cece cece cece cece ee ee cece 8 5 PULSE PROCESSING UNIT 9 LETHAL VOLTAGE CAUTION amp OPERATION WARNI 5 9 5 1 DIMENSIONS 9 5 2 CONSTANT FRACTION DISCRIMINATOR 9 5 3 HIGH VOLTAGE 11 5 4 CURRENT CONSUMPTION 11 5 5 MISCELLANEOUS da eaaa bene aia 11 SO 11 6 FRONT PANEL 12 6 1 FRONT PANEL DESCRIPTION sea ecules 12 Issue 2 0 FMB Oxford Ltd 2008 Page 2 of 11 DOCM0100 APD Prim Electronics Operating Manual 2 Introduction This manual details the specification and operating requirements for the C Prim electronics module and detector head APD0002 Before operation fully read and understand the manuals If there is anything you do not understand contact FMB Oxford2. 12 months after delivery save where the Equipment is installed and or commissioned by or under the supervision of FMB OXFORD in which case it shall be 12 months from the date of the installation certificate or 18 months after the date of delivery whichever is the earlier Issue 2 0 FMB Oxford Ltd 2008 Page 4 of 11 DOCM0100 APD Prim Electronics Operating Manual 4 Health and Safety Information 4 1 General In normal operation the system is designed to operate safely The user should however be aware of potential hazards which exist in and around equipment of this type and of the ways of avoiding possible injury and equipment damage which may result from inappropriate ways of working A description of such potential hazards and how to avoid them is given in this section If the equipment is used in a manner not specified in the User Manual the protection provided by the equipment may be impaired This manual adopts the following convention e Indicates important information that must be adhered to ATTENTION e Indicates a potential hazard which may result in injury or death WARNING e Indicates a potential hazard which may result in damage injury to equipment or user CAUTION Do not take risks You have a responsibility to ensure the safe condition and safe operation of equipment Issue 2 0 FMB Oxford Ltd 2008 Page 5 of 11 DOCM0100 APD Prim Electronics Operating Manual 4 2 Potential Electric
3. DOCM0100 APD Prim Electronics Operating Manual The APD Head is protected over high current consumption When the bias voltage current exceeds the overcurrent threshold the bias voltage is switched off the TRIP red LED is LIT Hence adjust the bias voltage V MON potentiometer or the over current threshold 1 TRIP potentiometer and apply bias voltage V TRIP RES Push button 6 4 Current Consumption of NIM version e 300 mA maximum the 24 line e 120 mA the 24 V line e 330 mA the 12 V line e 90 mA on the 12 V line Issue 2 0 FMB Oxford Ltd 2008 Page 10 of 11 DOCM0100 APD Prim Electronics Operating Manual 7 Front Panel 7 1 Front panel description e TRIP red LED lit over current detected bias high voltage switched off When starting up the red LED lit due to initialisation Press the TRIP RESET button to switch on power supply ATTENTION V TRIP RES push button apply bias high voltage e current monitor mon 0 3 mA 0 10V ouput TRIP overcurrent threshold adjustment potentiometer Imax O 30HA 0 0 12V output factory setting 50 mV 12 5 e bias voltage adjustment potentiometer HV 0 420V 0 7V output e UL VARIABLE FIXED Discrimination selection switch VARIABLE window mode FIXED integration mode e TRIGGERgreen LED trigger On Off e GND ground UL upper level threshold adjustment potentiometer to 2 5
4. note that permanent damage to the APD head can occur if rated High Voltage supply value above is exceeded Disturbing ground loops warning order to avoid unwanted effects the body of the APD Head should always be electrically isolated from the experiment where it is installed CAUTION Shielding ground warning In order to obtain the best signal shielding the body of the APD Head must always be electrically connected to the ground of the pulse processing electronics used ATTENTION 6 1 Dimensions External 221 6 x 34 15 5U 6 2 Constant fraction discriminator e Input impedance 50 Ohm e Timing resolution 60 pSec FWHM e Input thresholds lower and 0 2 5V upper level e Fixed input delay ty 2 nSec ty gt 2 3 x t for true constant fraction e TTL ouput into 50 Ohm rise time 2 2 nSec 5 fall time 3 5 nSec width FWHM 6 2 nSec 1 maximum rate 100 MHz 6 3 High Voltage Supply e Output voltage Adjustable between 0 V and 420 V e Output current max 3 mA e Ripple HF gt 5 KHz gt 1 MVp p LF 5 KHz 4 e Monitor Voltage amp Current 0 to 10 V 2 5 accuracy e Current limit 120 of maximum output current e Protection Short circuit and arc protected e Input voltage 24V 10 e Input current 300 mA e Temperature Operating Operating gt 10 to 50 Storage gt 20 to 70 C e Thermal drift Typical gt 20 ppm C Maximum gt 50 ppm C Issue 2 0 FMB Oxford Ltd 2008 Page 9 of 11
5. APD Prim Electronics FMB Oxford Operating Manual APD PRIM Pulse Processing Unit and APD Head 5 x 5 Operating amp Service Manual FMB Oxford Unit 1 Ferry Mills Osney Mead Oxford OX2 OES UK Tel 44 0 1865 320 300 Fax 44 0 1865 320 301 http www fmb oxford com Issue 2 0 FMB Oxford Ltd 2008 Page 1 of 11 DOCM0100 APD Prim Electronics Operating Manual 1 Table of Contents 1 TABLE OF 6 2 2 WARRANTY ican 3 3 OVERVIEW we A 4 4 APD HEAD 5 LETHAL VOLTAGE CAUTION 6 OPERATI 5 5 4 1 BLOCK DIAGRAM 6 4 2 HOUSING 6 E D 6 AL A 6 4 5 POWER REQUIREMENT 7 4 6
6. al Hazards The following list is not intended as a complete guide to all the electrical hazards on the system but illustrates the range of potential hazards that exist Electrical shock Electrical burn Fire of electrical origin Electrical arcing particularly at partial vacuum gt WARNI NG 4 3 Electrical Precautions e Ensure that all electrical equipment is properly grounded Conform to all local and national electrical regulations Ensure that the mains supply is properly fused and can be isolated locally via a clearly labeled visible and easily accessible isolating switch Isolate the supply before carrying out any maintenance work Do not defeat interlocks remove connectors disconnect equipment open safety covers dismantle or modify equipment unless qualified and authorized to do so WARNING Only personnel who are qualified and authorized to work with the voltages and currents used by this equipment and are fully conversant with its operation and potential hazards may disconnect open dismantle service CAUTION or modify the equipment 4 4 Moving Parts e Keep clothing and body parts away from moving mechanisms gt CAUTI ON 4 5 X Ray Radiation This equipment is intended for use on an X ray beamline of a synchrotron e Ensure that all facility safe working practice and procedures are followed gt CAUTI ON The manufacturer does not accept and liability for personnel injury or dama
7. ge resulting from ionising radiation Issue 2 0 FMB Oxford Ltd 2008 Page 6 of 11 DOCM0100 APD Prim Electronics Operating Manual 4 6 Modifications and service The safety reliability or performance of the equipment may be impaired if assembly operations extensions re adjustments modifications or repairs are not carried out in accordance with the instructions provided in this manual and with any other instructions issued by the manufacturer If you wish to modify the equipment please contact FMB Oxford for further advice It should be stressed that those parts of the equipment which are interchangeable and which are subject to deterioration during operation may significantly affect the safety of the equipment ATTENTION Issue 2 0 FMB Oxford Ltd 2008 Page 7 of 11 DOCM0100 APD Prim Electronics Operating Manual 5 Overview The detection system consists in an APD head and a pulse processing unit The APD head features a 5x5 mm avalanche photodiode and a multi staged high speed amplifier The pulse processing unit supplies the bias voltage for the APD head and a constant fraction discriminator Issue 2 0 FMB Oxford Ltd 2008 Page 8 of 11 DOCM0100 APD Prim Electronics Operating Manual 6 Pulse Processing Unit e LETHAL VOLTAGE PRESENT INSIDE DEVICE WHEN OPERATED 400 VOLTS MAXI MUM HIGH VOLTAGE SUPPLY e USER MUST DISCONNECT DEVICE BEFORE OPENING HOUSING FOR CAUTION ANY REASON e Please
8. third party supplier before use ATTENTION e This product should only be used by those persons legally permitted to do so 2 1 1 Important Health and Safety Notice When returning components for service or repair it is essential that the item is shipped together with a signed declaration that the product has not been exposed to any hazardous contamination or that appropriate decontamination procedures have been carried out so that the product is safe to handle 2 1 2 Feedback Care has been taken to ensure the information in this manual is accurate and at an appropriate level Please inform FMB Oxford if you have any suggestions for corrections or improvements to this manual 2 1 3 Trademarks FMB Oxford acknowledges all trademarks and registrations 2 1 4 Copyright Copyright 2008 FMB Oxford Ltd All rights reserved No part of this document may be reproduced or distributed in any form or by any means or stored in a database or retrieval system without prior written permission of FMB Oxford Issue 2 0 FMB Oxford Ltd 2008 Page 3 of 11 DOCM0100 APD Prim Electronics Operating Manual 3 Warranty 2 1 FMB OXFORD warrants that the Equipment shall be free from defects by reason of faulty design workmanship or materials and that if within the guarantee period set out in sub clause 3 the Equipment proves defective for such reason FMB OXFORD shall adjust repair or replace it as it sees fit free of charge pro
9. to 2 5 V output LL lower level threshold adjustment potentiometer LLT 0 to 2 5 V to 2 5 V output Issue 2 0 FMB Oxford Ltd 2008 Page 11 of 11 DOCM0100
10. vided that 2 1 1 2 1 2 2 1 3 2 1 4 2 1 5 2 1 6 2 1 7 2 1 8 The Equipment has been used solely for the purpose for which FMB OXFORD understands it is to be used and in accordance with the operating instructions The defect has not been caused by fire accident misuse neglect incorrect installation by the customer its customers agents or servants or unauthorised repair or maintenance or by use of sub standard consumables The defect has not arisen from any design specification component or material supplied by the customer No part of the Equipment has been replaced with a part not supplied by FMB OXFORD or approved as suitable by it Payment in full of all sums due in respect of the Equipment has been made The customer shall be liable for any costs incurred by FMB OXFORD in responding to claims made in respect of erroneous results caused by operator error or incorrect application Upon the customer making a claim under sub clause 1 it shall accord sufficient access to the Equipment to enable FMB OXFORD staff to inspect and adjust repair remove or replace the Equipment FMB OXFORD will co operate with the customer in the assessment of reported defects but the final decision regarding the applicability of this guarantee shall rest with FMB OXFORD 2 2 FMB OXFORD shall decide if the Equipment should be repaired pursuant to sub clause 1 at its site or returned 2 3 The applicable guarantee period shall
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