Berthold LB 134 - 11 Appendix; Calibration Factors for LB 1342 Scint-Contamination Probe (170 CM²)

LB 134 11. Appendix
124
11. Appendix
11.1 Calibration Factors for LB 1342 Scint-Contamination Probe (170 cm²)
List of radionuclides with calibration factors that are hard-coded in the LB 134 (for the scint detector) for the conversion
of cps to Bq/cm
2
. Test sources with a standardized area of 10 cm x 10 cm were used (A-100). The factors according to
ISO 7503-1 have been determined in compliance with the requirements of the standard.
LB1342
6)
Limit
values
1)
Efficiencies, response, calibration factors and
decision thresholds and detection limits
ISO 7503-1
3)
Nuclide
CH
eff
src
in
Bq/cm²
Efficiency
in
%
Response
in
s
-1
Bq
-1
cm
2
Calibration
factor in
s Bq cm
-2
Decision thr.
in
Bq/cm²
5)
Detection limit
in
Bq/cm²
4)5)
Beta
b-g
0.50
70.0
59.50
0.017
0.018
0.036
C-11
b-g
0.50
1
74.1
63.00
0.016
0.017
0.034
N-13
b-g
0.50
1
74.7
63.53
0.016
0.017
0.034
C-14
b-g
0.25
100
28.6
12.16
0.082
0.085
0.173
O-15
b-g
0.50
1
74.9
63.66
0.016
0.017
0.034
F-18
b-g
0.50
1
87.4
74.28
0.013
0.013
0.028
Na-22
b-g
0.50
1
67.1
57.03
0.018
0.019
0.038
P-32
b-g
0.50
100
68.8
58.46
0.017
0.018
0.036
P-33
b-g
0.25
100
59.9
25.47
0.039
0.040
0.082
S-35
b-g
0.25
100
25.9
11.00
0.091
0.094
0.192
Cl-36
b-g
0.50
100
68.7
58.40
0.017
0.018
0.036
K-40
b-g
0.50
10
74.7
63.53
0.016
0.017
0.034
K-42
b-g
0.50
10
74.9
63.66
0.016
0.017
0.034
Ca-45
b-g
0.25
100
38.1
16.18
0.062
0.064
0.131
Sc-46
b-g
0.25
1
53.8
22.88
0.044
0.045
0.093
Ca-47+
b-g
0.50
1
6.2
5.31
0.189
0.195
0.400
Cr-51
b-g
0.50
100
0.05
0.05
22.2
22.9
47.0
Mn-54
b-g
0.50
1
1.6
1.36
0.734
0.756
1.552
Fe-55
b-g
0.50
100
0.08
0.07
15.2
15.6
32.0
Co-57
b-g
0.50
10
7.3
6.19
0.162
0.167
0.343
Co-58
b-g
0.50
1
16.8
14.31
0.070
0.072
0.148
Fe-59
b-g
0.50
1
68.4
58.17
0.017
0.018
0.036
Co-60
b-g
0.25
1
58.2
24.72
0.040
0.041
0.085
Ni-63
b-g
0.25
100
0.65
0.27
3.650
3.760
7.716
Ga-67
b-g
0.50
100
24.2
20.53
0.049
0.051
0.104
Se-75
b-g
0.50
10
10.5
8.90
0.112
0.115
0.237
Sr-85
b-g
0.50
1
3.1
2.65
0.377
0.388
0.797
Rb-86
b-g
0.50
10
74.9
63.66
0.016
0.017
0.034
Sr-89
b-g
0.50
100
66.7
56.70
0.018
0.019
0.038
Sr-90+
b-g
0.50
1
67.7
57.56
0.017
0.018
0.036
Y-90
b-g
0.50
100
65.0
55.25
0.018
0.019
0.038
Tc-99m
b-g
0.50
10
15.7
13.37
0.075
0.077
0.159
Tc-99
b-g
0.25
100
61.9
26.30
0.038
0.039
0.080
Ru-106+
b-g
0.50
10
74.9
63.66
0.016
0.017
0.034
In-111
b-g
0.50
10
26.0
22.10
0.045
0.046
0.095
Sn-113+
b-g
0.50
10
46.7
39.72
0.025
0.026
0.053
I-123
b-g
0.50
10
29.3
24.95
0.040
0.041
0.085
I-125
b-g
0.25
10
16.5
7.01
0.143
0.147
0.302