Shot NECTAR was detonated on Enewetak. Figure 1-1 depicts the locations of Bikini
and Enewetak with respect to the other atolls comprising the northern
Islands.

Figures

1-2 and

Marshall

1-3 show the main features of Bikini and Enewetak,

respectively, and the locations of the CASTLE detonations.

The pertinent details of

each test are summarized in Table 1-1 (Reference 2).

Table 1-1. Operation CASTLE shot data.

1.2

Shot Name

Local Date (time)

Yield

Location

BRAVO

1 Mar 54 (0645)

15 Mt

Bikini

ROMEO

27 Mar 54 (0630)

{1 Mt

Bikini

KOON

7 Apr 54 (0620)

L10 Kt

Bikini

UNION

26 Apr 54 (0605)

6.9 Mt

Bikini

YANKEE

5 May 54 (0610)

{3.5 Mt

Bikini

NECTAR

14 May 54 (0620)

1.69 Mt

IVY MIKE Crater,
Enewetak

NAVAL PARTICIPATION

The devices were tested by a joint military and civilian organization designated
as Joint Task Force Seven (JTF-7).

Although military in form, it was comprised of

military, Civil service, and contractor personnel.

JTF-7 was organized into five main

task groups with Task Group 7.3 being the naval contingent.

Most of the approxi-

mately 6000 personnel assigned to TG 7.3 were aboard the various task group ships;
however, approximately 650 were stationed on Enewetak and Kwajalein Atolls.

Table

[-2 is a summary of the atolls and ships for which dose reconstructions are specifically

addressed in this report.

Also tabulated are the approximate number of personnel

assigned to each,
1.3

METHODOLOGY
The procedures developed in previous dose reconstruction efforts have been

adapted to the shipboard radiological environments of Operation CASTLE (References

Select target paragraph3