3.2.4 USS BAIROKO Dose Calculations
Dose calculations for the BAIROKO on 1-2 March 1954 are detailed below.
For
|
March, separate calculations are presented
crewmen involved in shipboard decontamination.
for the average crew and for
For 2 March, it is assumed the
"average" crew and "deck" crew had equal opportunity for exposure.
Time periods
below deck are indicated by an asterisk(*). After 2 March, the daily film badge doseis
calculated by multiplying the integrated intensity topside (Table 2-4) by the timeaveraged shielding factor (0.46); the integrated intensity below is multiplied by the
fraction of the day spent below deck (0.6).
Contributions from each source are
summed and converted to a film badge dose. Cumulative film badge doses through31
May 1954 are given in Table 3-4.
Day
Time Period
Integrated
Intensity (mR)
x
Ship Shielding
Factor
=
Adjusted
Exposure (mR)
Average Crew
1 March
0000-0600*
0600-0800
0800-1 300*
1300-1700
1700-2400*
6
0
1901.9
825.7
1215.8
3943.4 (Table 2-4)
Qt
1.0
Q.1
Q
0
190.2
825.7
121.6
1137.5
1 March film badge dose = (1138 mR) (0.7 mrem/mR) = 797 mrem (Table 3-4)
Decon/Deck Crew
1 March
0000-0600*
9600-0800
9800-1000*
1000-1200
1200-1300*
1300-1900
1900-2400*
0
0
660.3
917.9
323.6
1184.1
9.1
{.0
0.1
{.0
857.5
3943.4 (Table 2-4)
o.t
0
0
66.9
917.9
32.4
1134.1
85.8
2286.2
1 March film badge dose = (2286 mR) (0.7 mrem/mR) = 1600 mrem
2 March
0000-0800*
0800-1200
1200-1330*
1330-1700
1700-1800*
1800-2000
2000-2400*
1165.6
480.9
142.0
152.1
33.5
62.9
0.1
1.0
0.1
1.9
0.1
1.0
113.7
2150.7 (Table 2-4)
0.1
2 March film badge dose = (842 mR) (0.7 mR/mrem) = 589 mrem
116.6
480.9
14.2
{52.1
3.4
62.9
Lg
841.5
Cumulative film badge dose through 2 March = 1386 mrem (Table 3-4)
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