国際放射線防護委員会（ICRP）2007年勧 …

1 1 1 1 2 1 2007 2 1 2007 2 2 2007 2 2007 1990 5 2007 33 45 46 47 2007 48 i 1 icrp icrp 3 1991 1990 ICRP1990 10 (1998 )6 19 2007 12 icrp 1990 2007 2 20 2008 1 21 104 2007 20 2008 3 13 19 2007 1 2007 2 2007 1990 3 2007 4 1990 2007 1990 11 icrp 2007 ( )

2 1 2 1 2007 2007 19 2007 3 21 icrp 1990 1990 2007 2004 2006 2 1 2007 1 2 3 4 5 6 7 8 8 1 2 2 2 2007 1 2 5 2 2) ( ) 3 1990 1 5 DDREF 1990 2 2 4 3 1990 1990 5 1990 3 6

3 3 3 7 1990 8 a b 9 1990 4 5 2007 1990 1990 2007 1990 1990 ICRP1990 10 1998 6 1990 2007 8 1 2 3 4 5 6 7 8 2007 ( ) 1990 2007 ( ) 1990 ) 1 (1) (26) (10) (16) (2) (38)3 (42) (112) (3) (44) (47) (14) (106) (4) (52)

4 (53) K-40 ( ) (285) (291) 6 2007 ( ) 1990 ) K-40 2 (1) ( ) (60) 100mGy (58) (2) (65)LNT( ) (73)DDREF 2 (79) 2 1Gy (81) (83) (10-2Sv-1) (71) (74) 1 DDREF 2 (83) (10-2Sv-1) 7 2007 ( ) 1990 ) (87) 1Sv 5% (3) (95) 100mGy 100mGy (96)100mGy (90) (93) 3 (1) (112) 1 1 2 20 [][][] )ln( )ln(26/)ln(222 nEnEnEEEEnnn< ( ( )) ( ( )) ( ( )) (26) 1 1 10 KeV 5 10 KeV 100 KeV 10 100 KeV 2 MeV 20 2 MeV 20 MeV 10 20 MeV 5 5 2 MeV 20 8 2007 ( )

5 1990 ) (112) wT wT (134) ( ( )) ( ( )) ( ( )) ( ( )) ( ( )) (27) wT (28) (2) (144) Hp(10) (141) 50 (266) (269) 50 9 2007 ( ) 1990 ) (150) (141) 50 70 (151) (153) (prospective) (retrospective) ( ( )) (273) (274) 70 (32) 10 2007 ( ) 1990 ) (161) (34) 4 (1) (174) ( (102) (2) (176)

6 3 (106) 11 2007 ( ) 1990 ) (origin) (3) (177) 6. (178) (179) (180) (109) (134) (140) 12 2007 ( ) 1990 ) (181) IVR (139) (4) (183) (184) (185) ( ) ( ) (252) (260 261 262) 13 2007 ( )

7 1990 ) (186 1mSv (187) ( ) (189) ( ) ( ) 18 (176) (177) (178) ( ) 2mSv ALI( ) 1/20 (136) 14 2007 ( ) 1990 ) (190) (191) (193) (representative person) (195) IVR (140) (273) (182) (5) (197) (198) (121) (121) 15 2007 ( ) 1990 ) (202) (6) (203) 1990 ( ) ( ) (204) (108) (112) 16 2007 ( ) 1990 ) (7)

8 ( (208) ( ) (210) (115) (8) (211) (212) (218) (120) 17 2007 ( ) 1990 ) (9) (229) c ( d) a b a) b) c) d) ( ) (230 1 (144) 18 2007 ( ) 1990 ) (233) (234) (236) 100mSv 100mSv 100mSv (237) 3 (239)1mSv (257) 19 2007 ( ) 1990 ) (240)1 20mSv (241)20mSv 100mSv (242) (10) (243) (244)

9 20mSv 5 50mSv 1 (245) 1mSv 1mSv 5 1mSv ( ) (147,188) (182) (166) 20mSv/ 5 50mSv/ 1 20 2007 ( ) 1990 ) (246) (247)