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CT
4.4%, 9,905
(200212
CT41,000
CT12,868)
3.2%, 7,587
1000
Berrington A. G., Lancet, 2004
5000
200739
20061225
2006123
20094
200871
2000
200932
2000
CT
2007331
2007723
150mSv
5100mSv
1mGy=1mSv
5mGy=5mSv
1mGy
5mGy
5
JCO
99
6000~7000
3.1
1
0.15
0. 05
CT
10
250
3000~4000
1 100
10
1
0 1
10
mSv
100
100mSv
100200mSv
60
1020
DNA
DNA
5
A:T:
G:C:
DNA: 32
2
22,000
DNA2%
Molecular Biology of THE CELL
DNA
A:T:
G:C:
Molecular Biology of THE CELL
S
5
S
S
S
5
DNA
100,000eV
2nm
57eV
Int. J. Rad. Biol.
Doodhead DT, 1994
DNA
DNA
NHEJ
H2AX
H2AX
2Gy3
2Gy24
Rothkamm K. Lobrich M
PNAS 100, 2003
Gy
Rothkamm K. Lobrich M
PNAS 100, 2003
HPA-RPD-029
2006
2000
1996
HPA-RPD-029
3/4mGy
40
NRPB-W4
30
20
10
1
2
3
4
5
6
100mSv
200775
11
1CT
20059
0.0
11.4
40.0
4.8
42.9
4.5
43.8
5.7
1.4
47.6
41.4
4.8
0.0
0.0
45.5
5.5
0.0
0.9
70 21
110
1327
50
20069
13
23