2018-2019 project on establish the measurement guide of planned
exposure
situation, and assessment of radiation safety and risk
AEC10611045L
()
1 0 7 1 2 3
i
ii
(107 108 )
/()X X
X
X
iv
This project is based on the study of "2016-2017 project on
establish
the measurement guide of planned exposure situation, and assessment
of
radiation safety and risk". It is conducted in two-year period
(107-108) and
The subjects of on-site inspections and risk analysis include the
open
beam/portable X-ray equipment, static eliminators using X-ray,
veterinary
X-ray apparatus, and the other non-medical equipment capable of
producing
ionizing radiation. A total of 258 X-ray equipment completed the
on-site
radiation safety visits in 2018. In addition to investigate the
dose of the
operator or helper in normal use of these X-ray equipment, this
project also
considered the helper inside the examination room to help the
animal which
need to take X-ray checks in cases of wearing no lead apron. The
helper
usually is the owner of the animal or the colleague of the
veterinary hospital.
Therefore, in the visit to the veterinary hospital, the special
evaluation of the
abnormal situation of assisting the photographer in the examination
room to
assess the possible dose of the helper. This project statistically
analyzes the
data of on-site visits in 2018, and puts forward specific
recommendations for
radiation prevention control and risk control for the reference of
the
competent authorities. In addition, the project also collects the
characteristics
of the -radiation equipment that can be generated by
different
types/characteristic types in the country, investigates the
characteristics of
the radiation detectors used by the detecting companies, and
discusses the
applicability of the detector. Proposals for occupational
exposure
measurement specifications for different types of non-medical
free-radiation
devices are proposed.
beam/portable X-ray equipment, non-medical equipment
capable of producing ionizing radiation, radiation safety
inspection, radiation risk, applicability of radiation
detector
1
(2003 ) ICRP
ICRP
)[1]ICRP 103 (Planned exposure situation)
Agency IAEA) 2011 2014 (SSG-11 GSR Part
3)[2, 3] ICRP
[5-8]
[24-27]
/()X X X
X
X
X
1.
X
Sv/h
(Atomtex AT1121
1())()
5 keV ~15 keV Atomtex AT1103M
( 1()) X
1
30 ms
Atomtex AT1103M
scintillator)
30 ms
1. ATOMTEX AT1121()AT1103M()
5
3. X X /(
)X
X
X
6
X X X
X
X 7()
7. ()()X
(ii)“X ”
(18 )
)()X1(
)()X1(
(European Radiation Dosimetry Group,
EURADOS)1999106(Radiation
keV; E/H*(10)0.4
12
H*(10)
E/H*(10)0.7~0.85
(ICRP-60)[1,23] (4)
2 Sv(-X ray)
ICRP 60 103
()
ICRP-60 ICRP-103
()()
(3) x 30 cm
0.5 μSv/hr
500 (107 12 31 250
108 12 31 250 500 )
()
106 (1999):Technical recommendations on measurements of
external
environmental gamma radiation doses Radiation Protection 160
(2009): Technical recommendations for monitoring individuals
occupationally exposed to external radiation
1
107 107 7 15 107
107 12 6 107 108 3
15 108 108 7 15 108
108 12 6 108
107 2 7 X (/ X
/ X X )
3 6
3 13
4.1
(137 Cs )
( 241Am )
6 20 146 X
X 52 45 X
49 X ( 6 30 125 )
7 9 107
11 20 258 X
X 86 ( 3 ) 90 ( 1
17
) X 82 ( 8 )X 258 12
(270 ) (107 250 )
11 23 2
()
(1)
8 ) 258 ( 12 ) X
4.2 4.1X 4.3
4.2 X
4.3 X
18
107
(2) /X
()
X //
X
107 X
8146 107 452 5.5 % 1990 107
90 4.5 % X 792 107
86 10.9 %()X
915 107 82 9.0 %
(4)
()
82 3 X 1
90 89
1 AT1103M X
()X 82 75
7
(
1 )
2 X
10 2
(
2 )
4 X
( 1 )
( 1 )
(
( 1 )
( 1 )
9 X
(
2 )
( 1 )
1.44μSv/h
( 1 )
4.5 ()(1 )(10 )
10 ( 9) 15.51
Sv/h ()12.91 Sv/h ()
4.4 (1 )
1.594
15.509
1.87
5.12
0
2
4
6
8
10
12
14
16
18
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85
( 4.7)
20.7 Sv()( 67)36.0 Sv()( 51)
4.6 X
12.909
5.92
3.094
0
2
4
6
8
10
12
14
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85
10
Sv/h
0
5
10
15
20
25
30
35
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85
h/week
(b) X
() X
56.4
187
0
50
100
150
200
250
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85
Sv
1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85
)()
(2) X
AT1121
AT1103M () X
10 (1.873 Sv/h) 41(
1.434 Sv/h 0.5 Sv/h
AT1103M 0.1 mSv
93.65 mSv71.70 mSv 0.15 mSv 10
kVp 10 keV 10 keV (
0.947
0.701
1.873
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82 85 88
10
30
Sv/h
X
5.36 cm-1 mean free path 1/
=0.187 cm) 0.2
(107 )
105 106 105 106
284 107 ( 374 ) 4.11
4.12 AT1103M 4.11 105 12 106
15 107 1 28
5.36 cm-1 mean free path 1/
26
( 10
4.11 AT1103M X
(105-107 )
(105-107 )
27
(
)
0.1~ 1 mSv 6 0.102, 0.119, 0.241, 0.250, 0.406,
0.820
11.999, 11.999, 11.999, 11.999,
0.5 Sv/h
0.5 Sv/h 10 Sv/h ( 2, 42, 60, 69
X ) 4.13 X
4.14 ( 3
11 X () 22 CT
54 CT )
15
2 X 22 CT
54 CT 60 X
0.073 Sv 54 CT
0.066 Sv 54 CT 60
X
28
()
0.595
8.758
5.558
1.407
0
1
2
3
4
5
6
7
8
9
10
1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81
Sv/h
X
():
6250
0
1000
2000
3000
4000
5000
6000
7000
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
X
s
( 1~2 ) X
4.17
X 1.0 Sv 0.1 uSv
50 0.038 uSv
1.351 uSv
0.073 0.066 0.066
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
(uSv)
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
() 50 cm 50 cm Sv/h
X
():()
X
50 11.48 uSv ( 11)
405.29 uSv ( 11)
4.18 X
()
1.351
1.E+00
1.E+01
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
50 cm 50 cm Sv
X
()
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
50 cm 50 cm Sv
X
(,)
( H*(10) E)(AP)
ICRP 74ICRP 66 EURODOS RP106 AP
AP (Ka)-(E)
(E)()
60 kVp X 30~35 keV;
E/H*(10) 0.4 AT1121 (
):
0.4μSv/h)(1121μSv/h)( ATE
(Skin dose/E)
:
)E/H*(10) 1 Skin dose/E 2.54
AT1121 :
1μSv/h)(1121μSv/h)( ATE
X 100 kVp ( 40 keV) AT1121
E/H*(10) 0.53 Skin dose/E
1.071:
:
:
36.0 Sv/y 0.4 = 14.4 Sv/y
Skin dose/E 0.22 mSv
0.54 = 0.12 mSv << 500 mSv
/ X ()
6.8 mSv:
E/H*(10) 10
6.8 mSv 0.4 = 2.72 mSv
Skin dose/E
33
ICRP-60 ICRP-103 0.01
() 0.94 Sv
AT1123 10 keV X
AT1121 AT1123
94 Sv ()
0.04 uSv 1.4
Sv 1 mSv ( 1 X 20 Sv
) :
0.1 mSv) 50
11.48 uSv 405.29 uSv
( 1 X 20 uSv )
:
100 kVp ( 40 keV) AT1121 E/H*(10)
0.53 Skin dose/E 1.071
:
Skin dose/E
3.893 Sv0.57 = 2.22 mSv << 500 mSv
35
Skin dose/E
8.11E-06
2.30E-07
1.E-12 1.E-11 1.E-10 1.E-09 1.E-08 1.E-07 1.E-06 1.E-05 1.E-04
1.E-03 1.E-02 1.E-01
1.E+00
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
50 cm 50 cm (%)
X
1.E-10 1.E-09 1.E-08 1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02
1.E-01
1.E+00
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67
70 73 76 79 82
50 cm 50 cm (%)
X
()
()X
1. / X (X 50 kV~100 kV)
( / )
ER(4)AUTOMESS/ 6150AD 15 keV~ 10
MeV40 keV~ 1.3 MeV60 keV~ 30 MeV60 keV~ 1.3 MeV
/ X 50 keV
AT1103M
5~160 keV 10 kV X
3. ()X
( / )
37
RADEYE-B20-ER(4)AUTOMESS/ 6150AD
15 keV~ 10 MeV25 keV 60 keV~ 30 MeV()X
ATOMTEX/ AT1121(
10 Sv/h)
100 μSv/h
I 125
Α <2 MeV
β < 16 MeV
γ <10 keV
γ-ray
1.3 MeV
10 nSv/h ~
20 mSv/h
ray
ray
82 3 X 1
90 89
1 AT1103M X
()X 82 75
7 (12 )
mSv/y) 220.5 Sv (< 1 mSv/y) / X
() 680.6 Sv/s
(0.68 mSv/s) 10 6.8 mSv
/ X
9.5%(
1.2%
106 284 107 ( 374 )
287.5 %
39
AT1121 GM 107
( AT1103M)
108 X
/ X ()X
( 10 )
108 X
11 23 2
X 11 20
258 ( 12 ) X 86 ( 3 )
90 ( 1 )()X 82 ( 8 ):
X 86 82 3 X
1
90 89 1 AT1103M
X ()X
(12 )
3 14 11 23 107
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11
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43
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44
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2 2008636
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3 2008640
() 1200 779 534 128
4 2008642
() 200 46 45 14
5 2008644
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6 2008651
350 306 196 51 58 40 10 20.4 19.6
7 2008652
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8 2008653
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9 2008668
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10 2008669
() 300 1 1 1
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() 400 133 119 43
13 2008694
2000 1182 481 181 38 32 10 6.7 5.5
14 2008706
800 374 361 90
15 2008709
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16 2008710
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18 2008796
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20 13 6 6
27 2010659
() 10 63 27 6
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30 2013717
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32 2013819
50 8 7 5
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46
107 X 86 3 X
90 1 X 82 8
258 12
() X ( 86 3 )
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26 4 20 () 2012624
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29 5 3 2013145
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47
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63 8 31 2013803
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48
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84 10 19 2013314
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R-M1 7 24 () 2006844
R-M2 8 17 () 2012828
R-M3 10 16 () 2004492
() X ( 90 1 )
1 2
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2 3 19 (L5 ) 2008712
3 3 19 (L5 ) 2008712
4 3 19 (L5 ) 2008712
5 3 19 (L5 ) 2008712
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49
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21 3 31 () 2008653
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25 3 31 () 2008653
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50
45 4 30 (B ) 2008644
46 7 31 (A ) 2008709
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56 8 1 2008651
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51
81 10 2 () 2008694
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86 10 2 () 2008694
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52
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53