Publication Date: 1959
280-95 p.
Journal Announcement: NSA13
Document Type: Journal Article
Language: English
A unpredicted shift in winds shortly after the detonation of a large

thermonuclear device during Operation Castle at Bikini Atoll, Pactific
Proving Grounds, on March 1, 1954, caused deposition of significaht amounts

of fall-out on four nearby inhabited Marshall Isands . A survey was made to
determine the exposure of the island inhabitants. Twenty-eight American
servicemen on Rongerik Atoll received about 70 r and 23 Japanese fishermen
aboard their fishing vessel, the Lucky Dragon received significant

exposure. Sixty-four away from the detonation,

received an estimated dose

of fall-out equivalent to 175 r whole-body r radiation and BETA -ray
lesions of the skin, and slight internal absorption or radioactive
material. Eighteen people on a nearby island received about 69 r. The
status of 82 Marshallese people is reviwewed four years after their
exposure. Extensive physical examinations were carried out during the first
3 months after exposure, an repeated at six months and yearly intervals
thereafter. A brief summary of findings from these suveys is included.
Three deaths have occurred in the errosed group, but none was due to
radiation exposure. No abnormalities were observed in the 18 babies born to
exposed parents. During the discussion of this paper, M. Tsuziki reported

on the status of the 25 Japanese fishermen exposed in the same accident.
Examination four weeks after exposure showed leukopenia and r function and
jaundice; after 3 months, hyp- or asperima. One case was lost as a result
of severel hepaitis. After 4 years, all the surviving fishermen report
feeling well and appear to be good health. (C.H.)

Descriptors:
ABSORPTION; ACCIDENTS; BETA PARTICLES; BIKINI; BLOOD CELLS
; BLOOD FORMATION; BODY; FALLOUT; GAMMA RADIATION; LIVER; MAN; MARSHALL
ISLANDS; MEDICINE; METEOROLOGY; MONITORING; NUCLEAR EXPLOSIONS; PERSONNEL;
QUANTITATIVE ANALYSIS; RADIATION DOSES; RADIATION EFFECTS; RADIOACTIVITY;
SHIPS; SKIN; TESTING; THERMONUCLEAR REACTIONS; WIND
Subject Codes (NSA): HEALTH AND SAFETY

10/5/220
(Item 220 from file:
103258
NSA-13-009904

109)

6lose ANALYSIS OF BIOLOGICAL SAMPLES COLLECTED AT ENIWETOK,

16,

1948

Donaldson,

Washington.

L.R.;

Seymour,

Univ.,

A.H.;

Seattle.

Publication Date: nd
11 p.
Primary Report No.: UWFL-18
Note: Decl. Mar. 5, 1957
Journal Announcement: NSA13
Availability: NTIS
Document Type: Report
Language: English

Donaldson,

MAY

J.R.

Applied Fisheries Lab.

.

Contract No.: W-28-094-ENG-33

~

On May 16, 1945, the day following the Runit Island test, a collection of
marine organisms was made from the reef area north of the test site within
the general fall-out pattern. Collecting methods, preparation of material

for counting, counting methods,

organisms are given.

and data from various parts of the

Half life of the activity was approximately 180 days

and was tentatively identified as Na/sup 24/ and Ca/sup 14/.

(W.D.M.)

Descriptors:
BIOLOGY; CALCIUM 45; ENIWETOK; FALLOUT; HALF-LIFE;
MICROORGANISMS; NUCLEAR EXPLOSIONS; QUANTITATIVE ANALYSIS; RADIOACTIVITY;
SAMPLING; SODIUM 24; TESTING

Subject Codes

10/5/221

101018

(NSA):

HEALTH AND SAFETY

(Item 221 from file: 109)

NSA-13-007661

PROTECTION AGAINST THE GAMMA RADIATION OF THE RADIOACTIVE FALL-OUT IN
ATOMIC BOMB EXPLOSIONS
Rudloff, A.

Atompraxis
(West Germany)
Incorporated in Kerntechnik published from
Jan. 1971 as Kerntechnik Incorporating Atompraxis
vi 4,

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