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

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