SCIENTIFIC DIRECTOR'S REPORT OF ATOMIC WEAPONS TESTS AT ENIWETOK, 1951.ANNEX 6.4. FALL-OUT PHENOMENOLOGY,
Abstract
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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1951
- Accession Number
- AD0483423
Entities
People
- Charles E. Adams
- Francis R. Holden
- Norman R. Wallace
Organizations
- Naval Radiological Defense Laboratory