U.S. Atomic Energy Commission, Albuquerque, N. Mex.
Health Physics (England)
v 2.
Publication Date: (1960) Feb.
256-60 p.
wert
Coden: HLTPA
Note: 0017-9078
Journal Announcement: NSA14
Document Type: Journal Article
Language: English
Health physics in the support of field operations at the Nevada Test Site
and Eniwetok Proving Ground is briefly discussed. At the test sites, the
terms radiological safety and health physics are used interchangeably.
Radiological safety requirements necessary to control radiation exposure of
all participating personnel at both sites are presented. The organizational
setup for health physics support services and assignment of
respnnsibilities for control of radiation exposure to personnel are
discussed.
The necessary supporting rad-safety functions such as training
of monitors, use of aircraft and instrumentation, are included. (auth).
Descriptors:
AIRCRAFT; CONTROL; MONITORING; NEVADA TEST SITE; PERSONNEL
; RADIATION DETECTORS; RADIATION DOSES; RADIATION PROTECTION; SAFETY
Subject Codes (NSA): HEALTH AND SAFETY INCLUDING DOSIMETRY
10/5/200
126127
(Item 200 from file:
NSA-14-009667
109)
RADIOCHEMICAL ANALYSIS OF INDIVIDUAL FALLOUT PARTICLES
Mackin, J.L.; Zigman, P.E.; Love, D.L.; MacDonald, D.;
Naval Radiological Defense Lab., San Francisco
Publication Date: Sept. 17, 1958
46 p.
Primary Report No.: USNRDL-TR-386
Journal Announcement: NSA14
Document Type: Report
Sam,
D.
Language: English
Quantitative measurements were made of the radioactivity of individual
fall-out particles from a nuclear detonation at the Eniwetok Proving
Grounds. These measurements were possible since individual particles which
represented approximately 10/sup 10/ or more fissions were obtained.
Although several types of particles were observed, the data were generally
resolved as being derived from two major particle classes depending upon
whether the coral had undergone an obvious physical alteration such as
melting. A number of individual particles was radiochemically analyzed for
the nucleides Mo/sup 99/, Ba/sup 140/-La/sup 140/,
Sr/sup 89/, and N/sup
239/ The data obtained, together with gamma spectral and decay
measurements, indicate that fractionation of radionuclides was prominent in
the fall-out particles. Measured R values for Ba/sup 140/ and Sr/sup 89/
based on Mo/sup 99/ were over an order of magnitude lower in the altered
particles than in the more normal-appearing or unaltered particles. The
fissions/gram values of altered particles averaged 100 times that of
unaltered particles. Gamma decay curves of the two classes of particles
taken from H + 50 to H + 10,000 hr showed marked disslmilarities.~ In
addition to the established feasibility of the individual particle
measurements it is postulated that the radioactive composition of fall-out
at any point may be detemnined by the relative numbers of the two major
classes of particles observed. (auth)
Descriptors:
BARIUM 140; DECAY; DIAGRAMS; FALLOUT; GAMMA SPECTROMETERS;
LANTHANUM 140; MEASURED VALUES; MELTING; MOLYBDENUM 99; NEPTUNIUM 239;
NUCLEAR EXPLOSIONS; PARTICLES; QUALITATIVE ANALYSIS; QUANTITATIVE ANALYSIS;
RADIOACTIVITY; RADIOCHEMISTRY; SOILS; STRONTIUM 89
Subject Codes (NSA): HEALTH AND SAFETY INCLUDING DOSIMETRY
10/5/201
125762
(Item 201 from file:
NSA-14-009302
109)
FALLOUT IN THE OCEANS.
"Fallout from Nuclear Weapons Tests.
Hearings
Before the Special Subcommittee on Radiation of the Joint Committee on
Atomic Energy, Congress of the United States, Eighty-Sixth Congress, First
Session on Fallout from Nuclear Weapons Tests,
Volume 3"
Seymour,
A.
5 0 0 3 5 q l
May 5,6,7,
and 8,
1959.