Berthold LB 134 - Page 136

LB 134 11. Appendix
126
LB 1342
6)
Limit
values
1)
Efficiencies, response, calibration factors and
decision thresholds and detection limits
A-100
2)
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
threshold
in
Bq/cm²
5)
Detection
limit
in
Bq/cm²
4)5)
Beta
b-g
0.50
35.0
35.00
0.029
0.030
0.061
C-11
b-g
0.50
1
37.8
37.77
0.027
0.027
0.056
N-13
b-g
0.50
1
74.7
74.74
0.013
0.014
0.028
C-14
b-g
0.25
100
10.9
10.89
0.092
0.095
0.194
O-15
b-g
0.50
1
38.2
38.17
0.026
0.027
0.055
F-18
b-g
0.50
1
43.7
43.70
0.023
0.024
0.048
Na-22
b-g
0.50
1
34.2
34.19
0.029
0.030
0.062
P-32
b-g
0.50
100
42.9
42.86
0.023
0.024
0.049
P-33
b-g
0.25
100
26.1
26.06
0.038
0.040
0.081
S-35
b-g
0.25
100
11.2
11.22
0.089
0.092
0.188
Cl-36
b-g
0.50
100
43.5
43.51
0.023
0.024
0.049
K-40
b-g
0.50
10
38.1
38.09
0.026
0.027
0.056
K-42
b-g
0.50
10
38.2
38.17
0.026
0.027
0.055
Ca-45
b-g
0.25
100
19.4
19.40
0.052
0.053
0.109
Sc-46
b-g
0.25
1
27.4
27.43
0.037
0.038
0.077
Ca-47+
b-g
0.50
1
3.2
3.18
0.314
0.324
0.665
Cr-51
b-g
0.50
100
0.03
0.03
36.364
37.5
76.9
Mn-54
b-g
0.50
1
0.80
0.80
1.250
1.288
2.643
Fe-55
b-g
0.50
100
0.04
0.04
26.667
27.5
56.4
Co-57
b-g
0.50
10
3.6
3.64
0.275
0.283
0.581
Co-58
b-g
0.50
1
8.4
8.42
0.119
0.122
0.251
Fe-59
b-g
0.50
1
34.2
34.22
0.029
0.030
0.062
Co-60
b-g
0.25
1
28.9
28.86
0.035
0.036
0.073
Ni-63
b-g
0.25
100
0.32
0.32
3.125
3.219
6.606
Ga-67
b-g
0.50
100
12.1
12.08
0.083
0.085
0.175
Se-75
b-g
0.50
10
5.2
5.23
0.191
0.197
0.404
Sr-85
b-g
0.50
1
1.6
1.59
0.629
0.648
1.330
Rb-86
b-g
0.50
10
38.2
38.17
0.026
0.027
0.055
Sr-89
b-g
0.50
100
41.9
41.92
0.024
0.025
0.051
Sr-90+
b-g
0.50
1
84.3
84.33
0.012
0.012
0.025
Y-90
b-g
0.50
100
41.0
41.05
0.024
0.025
0.052
Tc-99m
b-g
0.50
10
7.9
7.86
0.127
0.131
0.269
Tc-99
b-g
0.25
100
30.5
30.50
0.033
0.034
0.069
Ru-106+
b-g
0.50
10
38.2
38.17
0.026
0.027
0.055
In-111
b-g
0.50
10
13.0
13.00
0.077
0.079
0.163
Sn-113+
b-g
0.50
10
23.4
23.37
0.043
0.044
0.091
I-123
b-g
0.50
10
14.7
14.67
0.068
0.070
0.144
I-125
b-g
0.25
10
8.2
8.25
0.121
0.125
0.256
I-131
b-g
0.50
10
42.6
42.58
0.024
0.024
0.050
Cs-137+
b-g
0.50
1
43.1
43.15
0.023
0.024
0.049
Pm-147
b-g
0.25
1
14.7
14.71
0.068
0.070
0.144
Sm-153
b-g
0.50
10
59.5
59.51
0.017
0.017
0.036
Er-169
b-g
0.25
100
31.4
31.40
0.032
0.033
0.067
Re-186
b-g
0.50
1
42.0
42.04
0.024
0.025
0.050