Accession Number:

AD0343198

Title:

SHIELDING EFFECTIVENESS OF ENCLOSURE SHIELDS IN A FALLOUT FIELD

Descriptive Note:

Corporate Author:

BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Report Date:

1963-04-29

Pagination or Media Count:

77.0

Abstract:

Several enclosure shields were exposed to Shot Small Boy at a downwind distance of approximately 16,000 feet. These shields consisted of hollow-walled steel cubes and spheres of several over-all dimensions. Gamma-ray dose rate due to fallout was measured for a period of 48 hours inside and outside these shields, and the trans mission factor of each shield as a function of time was determined. The transmission factor is defined as the ratio of inside to outside dose. The dose measurements were determined with detectors placed inside the shields and at fixed positions about the area surrounding these shields. The outside or free-field measurements were compared with portable survey meter read ings taken at later times following the burst. The change in transmission factor as a function of time is discussed. Author

Subject Categories:

  • Nuclear Instrumentation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE