KaVo 3D eXam - Scatter Measurements for PAN Scan

K990400 16 April 2008
Radiation Environment Survey
12-7
Scatter Measurements for PAN Scan
Location
Distance in
Feet
[meter]
Exposure
(mR)
Exposure
(μR)
10
scans/wk
mR/wk
25
scans/wk
mR/wk
50
scans/wk
mR/wk
0
o
(A)
3 [0.91m] 0.11 112.7 1.1 2.8 5.6
6 [1.82m] 0.04 35.5 0.4 0.9 1.8
9 [2.74m] 0.02 16.4 0.2 0.4 0.8
45
o
3 [0.91m] 0.14 135.1 1.4 3.4 6.8
6 [1.82m] 0.04 35.6 0.4 0.9 1.8
9 [2.74m] 0.02 17.1 0.2 0.4 0.9
90
o
(B)
3 [0.91m] 0.10 98.6 1.0 2.5 4.9
6 [1.82m] 0.03 26 0.3 0.7 1.3
9 [2.74m] 0.01 12.3 0.1 0.3 0.6
135
o
3 [0.91m] 0.10 95.2 1.0 2.4 4.8
6 [1.82m] 0.02 24.6 0.2 0.6 1.2
9 [2.74m] 0.01 10.3 0.1 0.3 0.5
180
o
(C)
3 [0.91m] 0.11 113.6 1.1 2.8 5.7
6 [1.82m] 0.02 24.6 0.2 0.6 1.2
9 [2.74m] 0.01 11.6 0.1 0.3 0.6
225
o
3 [0.91m] 0.09 93.1 0.9 2.3 4.7
6 [1.82m] 0.02 19.8 0.2 0.5 1.0
9 [2.74m] 0.01 10.2 0.1 0.3 0.5
270
o
(D)
3 [0.91m] 0.09 93.1 0.9 2.3 4.7
6 [1.82m] 0.02 21.9 0.2 0.5 1.1
9 [2.74m] 0.01 10.9 0.1 0.3 0.5
315
o
3 [0.91m] 0.12 124.5 1.2 3.1 6.2
6 [1.82m] 0.03 32.8 0.3 0.8 1.6
9 [2.74m] 0.02 15.1 0.2 0.4 0.8
1 meter above
0.03 30.7 0.3 0.8 1.5
1 meter above + 1 Outward
0.01 7 0.1 0.2 0.4