日本保健物理学会専門研究会報告書シリーズ ISSN Vol.5, No.1, 放射線防護に用いる線量概念の専門研究会 2007 年 8 月発行者日本保健物理学会企画委員会発行所日本保健物理学会東京都新宿区西新宿 NPO 事務センター内日本

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1 ISSN 日本保健物理学会専門研究会報告書シリーズ Vol.5 No.1 放射線防護に用いる線量概念の専門研究会 2007 年 8 月日本保健物理学会

2 日本保健物理学会専門研究会報告書シリーズ ISSN Vol.5, No.1, 放射線防護に用いる線量概念の専門研究会 2007 年 8 月発行者日本保健物理学会企画委員会発行所日本保健物理学会東京都新宿区西新宿 NPO 事務センター内日本保健物理学会事務局 TEL: FAX: jhps@wwwsocnii.ac.jp

3 2007 7

4 ICRP ICRP

5 1 1.1 (ICRP) (ICRU) 2005 ICRP ICRP web ICRP

6 ICRP ICRP 2 Menzel ICRP (1) (2) ICRP The 3rd Asian Regional Conference on the Evolution of the System of Radiological Protection OECD/NEA (3) 2

7 (4) ( ) ( )

8 2.1 ICRP 1990 ICRP Publication60 1) ICRU 1985 Report39 2) Report43 3) Report 47 4) Report 51 5) Report 66 6) 7 8 7), 8) ICRP 1990 ICRU Report 39 ICRP ICRP ICRU ICRP ICRP 2.2 D ICRP1990 Q(L) wr 4

9 Q(L) L wr 1) wr ICRP1990 ICRP Publication wr ICRP Publication60 1 wr Q 10MeV 10MeV 2) wr bilocality ICRP Publication92 w bilocality 1) wr wr bilocality 3) Q(L) wr ICRU Report 40 10) y Q(y) Zeider ) Q(y) 2.3 ICRP1990 DT,R HT E (1) (2) 5

10 H T wr D T, R = R (1) E = w T H T (2) T wr wt (1) DT,R SI J/kg HT E (Gy) (Sv) 1) ICRP Radiation weighted dose Sv Gy w SI J/kg 40 2) ICRP 6

11 12),13) 14),15) ICRP ICRU ICRP ICRU ICRU Report39 Q(L) 14,15) ICRU H*(d) H (d,ω) ICRU 30cm 1 d 1cm 70µm 3mm Ω ICRU Report39 Hp(d,Ω) 30cm 30cm 15cm Hp,slab(d,Ω) 7

12 ICRP ICRU 1) ICRU ICRU ICRU 2) 1) 2) 3) 8

13 ICRP 3.1 ICRP 3 ICRP 2 Menzel CERN voxel 100MeV wr wt 1990 qe wr wr Q(L) wr 3.2 9

14 DNA RBE DDREF ICRP DDREF BEIR 1.5 DDREF 10% 3.3 DDREF 10

15 X wt 3.4 ICRP ICRP web / OECD/NEA The 3rd Asian Regional Conference on the Evolution of the System of Radiological Protection wr R RBE 50MeV 50MeV 5 10GeV 2.5 1MeV < E < 50MeV RBE MeV Q(L) GeV 2 wr 2 wr 11

16 20 Publication 66 16) Publication100 17) 3.1 Menzel wt voxel ICRP 12

17 ICRP 1990 Q(L) Q wr 13

18 2007 ICRP ICRP ICRP Publication 92 Q(L) 50MeV 1MeV ) ICRU 14

19 "dual" 2) 1) ICRU DT,R 2.2 bilocality DT,R ICRU Report ICRU 15

20 ICRP ) OECD/NEA The 3rd Asian Regional Conference on the Evolution of the System of Radiological Protection Sv 2) ICRP Annex B Annex B 16

21 ICRP ICRU 3) ICRP prospective 4.2 ICRP 4) DDREF 17

22 ICRP ICRU 1990 ICRP OECD/NEA ICRP ICRP ICRU 18

23 ICRP ICRU ICRP ICRU ICRP 1990 Menzel ICRP ICRU ICRP 19

24 20 14),15) Φ D K H*(d) H (d) Hp(d) D T,R H T E (wr,wt ) Q(L) wr,wt (Bq) (Bq) (Bq) (Sv/Bq) (Sv) (Sv)

25 1) International Commission on Radiological Protection (ICRP): Recommendations of the International Commission on Radiological Protection, ICRP Publication 60, Annals of ICRP, 21, (1991). 2) International Commission on Radiation Units and Measurements (ICRU): Determination of Dose Equivalents Resulting from External Radiation Sources, ICRU Report 39, (1985). (reprinted (1991).) 3) International Commission on Radiation Units and Measurements (ICRU): Determination of Dose Equivalents Resulting from External Radiation Sources-Part2, ICRU Report 43, (1988). 4) International Commission on Radiation Units and Measurements (ICRU): Measurement of Dose Equivalents from External Photon and Electron Radiations, ICRU Report 47, (1992). 5) International Commission on Radiation Units and Measurements (ICRU): Quantities and Units in Radiation Protection Dosimetry, ICRU Report 51, (1993). 6) International Commission on Radiation Units and Measurements (ICRU): Determination of Operational Dose Equivalent Quantities for Neutrons, ICRU Report 66, (2001). 7), JAERI-Conf , (1995). 8), JAERI-Conf , (1996). 9) International Commission on Radiological Protection (ICRP): Relative Biological Effectiveness (RBE), Quality Factor (Q) and radiation weighting factor (wr), ICRP Publication 92 Annals of ICRP, 33(4), (2003). 10) International Commission on Radiation Units and Measurements (ICRU): The Quality Factor in Radiation Protection, ICRU Report 40, (1986). 11) M. Zaider and D. J. Brenner: On the Microdosimetric Definition of Quality Factors. Radiat. Res., 103, (1985). 12) International Commission on Radiological Protection (ICRP): Dose Coefficients for Intakes of Radionuclides by Workers, ICRP Publication 68 Annals of ICRP, 24(4), (1994). 13) International Commission on Radiological Protection (ICRP): Dose to Members of the Public from Intake of Radionuclides-Part4, ICRP Publication 71 Annals of ICRP, 25(3-4), (1995). 14) International Commission on Radiological Protection. Conversion Coefficients for Use in Radiological Protection against Radiological Protection, ICRP Publication 74, Annals of ICRP, 26, (1996). 21

26 15) International Commission on Radiation Units and Measurements (ICRU): Coefficients for Use in Radiological Protection against Radiological Protection, ICRU Report 57, (1997). 16) International Commission on Radiological Protection (ICRP): Human Tract Model for Radiological Protection, ICRP Publication 66, Annals of ICRP, 24(1-3), (1994). 17) International Commission on Radiological Protection (ICRP): Human Alimentary Tract Model for adiological Protection, ICRP Publication 100 Annals of ICRP, 36(1-2), (2006). 22

gofman2.eps

gofman2.eps 2011 7 10 4 7 1 ICRP(2007) 5.7 10 2 Sv 1 1 13 (=4600 =11 =660 ) 10mSv 5.7 10 4 4600[] =2.6[] ICRP 0 1 licrp 1 2 1 DDREF ICRP(2007) (ICRP 2007, p.178) - (idem., p.174) 1Sv - (DDREF: dose and dose-rate effectiveness

日本保健物理学会専門研究会報告書シリーズ ISSN Vol.5, No.1, 放射線防護に用いる線量概念の専門研究会 2007 年 8 月 発行者日本保健物理学会企画委員会発行所日本保健物理学会 東京都新宿区西新宿 NPO 事務センター内日本

日本保健物理学会専門研究会報告書シリーズ ISSN Vol.5, No.1, 放射線防護に用いる線量概念の専門研究会 2007 年 8 月発行者日本保健物理学会企画委員会発行所日本保健物理学会東京都新宿区西新宿 NPO 事務センター内日本