中学校理科「放射線」に関する学習・指導のための基礎研究Ⅰ
Contents
1.2. DD 4 1 1 ER 10 uC 60 Vi MA 300 ES 7 10
3. 4 9 2 3 1 SE ESE NY L 2
4. 1cmy CsI S y y
5. 1 1000 10 10 1 9 0 60 dis lt qa a 2 a a gt i a i lt 4 gt aa Cas a lt 5 9 2 10 lt x a as 1s 9 10 10 SE GE PO x
6. 1cm 1 70 p y 150keV 3MeV 1 2 2 K Rb
7. HH 1 3 J 24 1 E 3 E E f
8. 3 2 U Mi me EE IE SER 100 0 03 100 300 I 0 2 1 20 cm 0 1 300 500 0 66 200 306 400 300 i 8 10 500 0 100 0 056 Sv h 160 300 0 338 x Sv h 360 500 0 075u Sv h 20cm 118 1 1 0 338 Sv h 0 1 1
9. k 3 238 gt 2 Th gt 234D4 gt 234 gt 230Th gt 226Ra gt 222Rn gt 219po gt 10p o gt 206pb 4 468 2 455 7 538 1 600 Sc 10 y 24 10d 1 17m 10 y 10y amp 10 y 3 824d 3 10m 138 4d _ a y BB y BB y ao y 0 amp y ey ey ei W Y 115 OU 4 468X10y 0 050 0 34Th 2 238U 3 1 2
10. 1 CN 0 LR Ey A SS
11. 8 Q amp A 1995 9 1 2009 10 http www keirinkan com 11 3 1984 12 ATOMICA http www rist or jp atomica 123
12. y 2 3 4 3 T DX 200 DX 300 IL p 1 4
13. II 0 35cm DX 300 4 1 5cm 1cm 2 0cm gt 15 13 10 6 3 3 2 2 ml 15 15 9 5 3 3 2 2 16 15 11 6 3 2 2 lt 2 5 I
14. 4 3 y 4 Th 4 632 Sv h IL 3 1 3 2 4 0
15. 23 3 11 FS 1 I 1
16. f 33 2012 1 I A Fundamental Study for Learning and Teaching about Radiation in Science Classes of Junior High Schools I the property and measuring procedure of a simple radioactivity measuring device Hakaru kun 24 i ee i NiD2 UCHITA Yumiko SHIGEMATSU Hirotake Received January 10 2012
17. a 10 3 13 7 5 g Oz 3 1 3 2 ga a 2 3 2 8 ag 3 3 4 a aj a O n 13 5 1 13 2 3 ais 2 13 2 ai 3 13 2 3 a 4 13 2 8 aj 5 13 2 2 a 6 13 8 8 gg 11 3 1 3 2 3 1 3 3 2 2 4 13 1 13 2 13 3 13 4 13 5 13 6 13 2 2 2 2 2 8 1 3 3 6 1 3 18 a ais 11 m 3 1 3 18
18. 219 9594 185 a 10 26 es di 912 NY 29171 dg 1i213 4i5 l6i6j6j6 6 6 l6 6 5i4 3 2 1 a a 8 di b 1 lt 10 130 2 10 a 10 6 6 5 6 1 13 4 10 a a 2a 3a 4a 5a 6 a a Sa 4a 3a 2a dg 1 13 13 1 5 120 6 m 1 3 3 5 6 ga 18 10
19. 122 10 65 6
20. U Th c y 3 Pb U U 99 284 2 2 YU o 4 147MeV 23 4 194MeV 77 2 eo 0 050MeV Th y 150
21. gi 8 1 m 3 130 6 1 a 1 4 2 3 10 1 4 2 1 4 2 2 1 10 1 10 1 11
22. 10 1 10 11 1 1 6 1 7 6 2 ai 1 6 7 3 7 7 67 g 1 2 n 3 n 4 n 5 n 2 11 1 1 1 6 gi 3 121 2 1
23. ag 1 6 1 1 10 1 10 4 2 2 n m 10 p 3 10 3 30 9 a4 3 Gi Xj 2a 3 a a a 2a g 7 1 3 3
24. 10 6 6 6 50 10 1 10 6 1 9 10 13 10 7 1 mm 0 5 10 15 ea SO EE 10 12 2
25. 1 n 3 Xx gt a 1 i n 9 7 1 gt EE a a X a 3 7 2 2 10 x ga ag x x 60 50 a 1 4 119 6m gt a 3 i 6m 5 10 xeps x x XX 10 x 1 x 4 g
26. 1 20 9 2 PE http www radi edu jp 3 2012 4 web http hakarukun go jp 5 T 33 2012 6 34 2012 7 2006 2008
27. 10 Sv h i 0 056Sv h 0 075Sv h 1 1 Ql A H 4 2 4 1 10 3 5 10 0 1000 10
28. 1 10 11 12 10 1 a a 10 1
29. m 2 3 J 5 lt 5 10 11 15 10 1 ga 10 10 1 4 2 1 4 2 2 12 11 12 10 6 1 1
30. 4 632 Sv h 100 2cm 1cm 3 2 3 1 7 8cm 1cm y 6 7 y 3 1
31. DX 300 2 6 3 y 117 8 T TE T 1 3 3 3 3 3 4 4 4 5 4 4 4 4 3 3 3 3 54 6 S S sm4 4 4 3 3 2 T6 6TS SN 3 3 4 4 5 5 7 7 7 7 6 6 5 6 4 3 3 4 4 S 6 9 10 10 9 BG 5 SN3 7 7 9 11 me Ne NS 4 4 s S80 1214 16 12 10 8 6 5 4 4 5 6 8 13 VR 18 18 16 13 0 NNe s 4 P44 5 7 12 16 23_ 26_ 19 IS 10 10 LE 3 li NAG 3237 3 20 9 6 5 4 56 12 18 38 4 4 5 7 9 22 1 48CS8_68 36 2615 Ms e613 4 le 75 Ms ee gt 0 5 hh al OF 5 7 9 i13125 84 4457 Me 10 74 100 48 325 Vy 5 6 12184 ER Fy BO Re Mt 36 lt 38 48 40 23 14 87 5 i 5 6 7N9 1323 3 4NS
32. 113 1 cv 8 y X WI X NN lt
33. 89 z He 9 114 5 6 2 co 8 y X DNS EN RR y I He 1 9 1
34. 897 cm 0 471 cm 1 0029 g Th 1 41X10Wy 28Ra 3 4 Th 2 eg 116 3 1 II THI 4 632 Svy h 100 5 II 68 84 lt 100 DX 300 51 lt 58 lt 100
35. SNs lz 315 20 19_ 22716 U1 8 6 5 i 4 4 S 6 NS 12 141313 10976 5 4 4 3 3 N67 N23 4 98 s 4 3 3 N48 s B10 97 6S 3 4 3 3 ANA MG 9 10 8 Ge 8 4 3 3 4 S Se g 7 6 5 5 4 3 3 3 4 4 4 S 6 66 OR Pi Py Bo ty PO CN TT Ti Tr TE Bi 3 3 3 3 NS S 55 55 4 4 3 3 33 3 4 4 4 5 4 4 5 4 4 3 4 3 8 1 a 1 8 1 EE L 1 11 1 1 8 4 0 4 8 8 4 0 4 8 x 7 I xz y 4 632 x Sv h 100 4
36. keV 3MeV y y T WCs U U 0 7209 T WCs TI 2 83 Cs 6 09
37. t 2 m gt 2 n J Dm DR a Va a j 2 i 2 1 1 4 x 7 7 1 ag 10 6 4 gz m 4 2 1 n m 4 2 2 4 2 1 7m 9 10 x a r 1 z a 10 130 13 3
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