PRIVACY ACT MATERIAL REMOVED
(SUPERSEDES MEMORANDUM OF 14 MARCH 1986)

410407

MEMORANDUM

15 April 1936

TO:

File

FROM:

C. Thomas

SUBJECT: Calculated Radiation Dose for

Ri
wd

- Operations IVY and CASTLE

PURPOSE
The purpose of this memorandum is to assess the radiation exposure potential f°

during

November 1952,

while

a

participant at Operation IVY.

Although

did not directly participate in Operation CASTLE, conducted at Bikini and
Enewetak Atolls during the spring of 1954, he was stationed on Kwajalein during this test
series; hence, his potential for radiation exposure resulting from the CASTLE tests is also
addressed.

OPERATION IVY

During the month of November

1952,

participated in

the two

atmospheric nuclear tests conducted at Enewetak Atoll in conjunction with Operation IVY.

During this time period,

was a Yeoman 3rd Class (YN3) assigned to the Gunnery

Department aboard the USS RENDOVA (CVE-114).

Specific shot data are detailed in

Table lL.

Table 1. Operation IVY Shot Data
Shot

Date (Time)

Yield

MIKE

1 Nov 52 (0715)

10.4 MT

KING

16 Nov 52 (1130)

500 KT

Type Detonation
Surface

Air (1,480 ft)
Source: Reference |

Dose reconstructions for Navy units participating at Operation IVY have been
performed (Reference 2),

activities while at Enewetak appear to deviate

somewhat from the typical crew scenarios used in that analysis; therefore, the dose
presented in Reference 2 for the crew of the USS RENDOVA is adjusted to account for his

specific activities.
PRIVACY ACT MATERIAL REMOVED

Select target paragraph3