TABLL B.5.
DIRECTIONAL RESPONSE OF LOW-RANGE
DETLCTOR «MOUNTED INSIDL GITR CASE)
TO BEAMS OF VARIOUS RADIATIONS
Detector and case were rotated in three longitudinal planes (45
degrees apart) about center of detector. The three responses
for each latitudinal angle were averaged and compared to response
of unshielded detector to Cs" radiation beamed at top of detector
(0 degree orientation).
Detector
70+kev
Orientation
X-rays
deg
0
L20-kev
X-rays
180-kev
X-rays
cs
Co®
22
0.982
1.055
0.830
0.769
0.936
1.095
45
67
0.977
L.use
0.861
0.935
1.115
1.115
1.165
0.959
6.830
0.979
0.992
101
0.973 ~
0.783
C.807
0.821
1.009
1.131
112
0.974
0.826
0.737
0.947
1.083
123
0.703
0.633
0.624
0.869
1.021
90
135
146
157
180
TABLE B.6
1.189
G.421
0.246
0.057
0.031
0.823
0.767
0.486
0.224
0.085
0.080
0.506
0.324
0.139
0.105
0.963
1.019
0.783
0.641
0.401
0.324
1.115
1.136
0.935
0.846
0.579
0.490
DIRECTIONAL RESPONSE OF HIGH-RANGE
DETECTOR :MOUNTED INSIDE GITR CASE)
TO BEAMS OF VARIOUS RADIATIONS
Detector and case were rotated in three longitudinal planes (45
degrees apart) about center of detector.
The three responses
for each latitudinal angle were averaged and compared to response
of unshielded detector to Cs'*” radiation beamed at top of detector
(0 degree orientation).
Detector
70-kev
120-kev
180-kev
Orientation
deg
X-rays
X-rays
X-rays
)
22
0.955
1.034
0.857
0.948
0.926
1,024
0.964
1.137
1.079
1.208
45
0.945
U.924
1.011
1.163
1.223
67
1.165
1.082
1.1063
1.219
1.265
101
1.196
1.250
1.316
90
1.274
1.179
112
123
135
Cs
137
Co
60
1.124
1.147
1.111
1.255
0.996
0.615
0.358
0.994
0.748
0.552
1.015
0.796
0.638
1.182
1.024
0.910
1.292
1.159
1.076
146
157
0.221
0.053
0.393
0.153
0.495
0.235
0.735
0.455
0.936
0.646
180
9.024
0.067
0.084
-252
0.286
91
1.290