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106 2009.3.

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

Molecular Biology of THE CELL

DNA

Molecular Biology of THE CELL

Molecular Biology of THE CELL

Molecular Biology of THE CELL


100,000eV

2nm

57eV
Int. J. Rad. Biol.
Doodhead DT, 1994

Molecular Biology of THE CELL

DNA

Molecular Biology of THE CELL

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

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