Scientific director's report of atomic weapons tests at Eniwetok, 1951. Annex 6. 4. Fall-out phenomenology

Technical Report · Wed Aug 01 00:00:00 EDT 1951

OSTI ID:6448660

Adams, C E; Holden, F R; Wallace, N R

An experiment was designed to measure the fall-out pattern and to study the nature of the fall-out particles from low-level, experimental atomic bomb air bursts in order to provide data for the appraisal of the potential health hazard from external and internal exposure to the fall-out products. Samples of the fall-out from Dog and Easy Shots were obtained. A study of the size distribution of the active particles was made by size fractionation and radioautographic techniques. Radiochemical analyses of the fallout were made. In addition, a study of the structure and composition of the fall-out particles was made. It was determined that the bulk of the radioactivity in the fall-out was associated with particles greater than 5 microns in diameter. The highest radiation levels were found on Bogallua at E + 30 min. The reading was about 30 r/hr as measured from a helicopter hovering 10 to 20 ft above the island.

• Research Organization: Naval Radiological Defense Lab., San Francisco, CA (USA)
• OSTI ID: 6448660
• Report Number(s): AD-483423/0
• Resource Relation: Other Information: Report on Operation Greenhouse. See also Rept. No. WT-22, dated August 1951, AD-224 534, Annex 2.3, dated August 1951, AD-224 533
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
54 ENVIRONMENTAL SCIENCES
GREENHOUSE PROJECT
FALLOUT
CHEMICAL ANALYSIS
DOSE RATES
PARTICLE SIZE
PERSONNEL
RADIATION HAZARDS
RADIOCHEMISTRY
SPATIAL DISTRIBUTION
WIND
CHEMISTRY
DISTRIBUTION
EXPLOSIONS
HAZARDS
HEALTH HAZARDS
NUCLEAR EXPLOSIONS
SIZE
450202* - Explosions & Explosives- Nuclear- Weaponry- (-1989)
510302 - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- Terrestrial Ecosystems & Food Chains- (-1987)