TABLE 3.23 COMPARISON OF STANDARD AND UNDERWATER GAMMA RECOKDS Actcal Position Bearing Distance From From Surface Surface Zero Zero deg (true: ft = : Nominal Pos:tion Ss j GI standard Camuiative Dose at 3 Minutes Underwater Cumualive Dose at 3 Minwtes r r Ratio veg UW Std Calculated Depth of UWGITR inches Wahoo: CLA 159 CL4.6 15's 3,0" D a.0 256°, DR 45 DR i... 283 263 4, 5F10 2400-0 336 4,190 CR a! CRi2 34, 234 #.68u 16.6 150 8) 63.8 $27 0 142 5,200 0.0769 0 326 12 0 12 0.000251 0.00000365 68 4.133 Q 0.00252 - 45 - 3.99 O.c2e2 24.3 18 0.0674 13 Umbrella: ui 1.8 081.5 1,760 755 0.876 i DR 4.5 263.5 4,330 No data 14.4 - - ORR 3.9 279.1 . 3,940 163 17.3 ids DRR 6.7 278.1 t o> 6,740 | 10a | ! I , , ‘ * : ul 55 | it — | 1 ' 1 | : | : \ | ! | : s S | ! ; 1 ad 0.uGt0-444 ; | | | o7 0.048 | + 0.8 bo4 : 1 ( ' | | \ { | 2 o6 = . i > - nm 2 ud OS e Zz 04 ¥ =z a 03 uw x ' ' i ’ | ! ; 1 : NGF } { 1 | ( \ | | | | Hl ! | | , | cS i | 02 | Qu ° ! i ! | i, 4 8 2 16 DEPTH 20 !; || 24 26 (IN) Figure 3.138 Ratio of underwater dose rate as a function of depth (calculated for 1-Mev gammas). : 248 32