TRANSIT RADIATION DOSE RATE,
Abstract
The objective of Project 2.20 was to determine the significance of transit radiation from passage of the cloud from surface and subsurface nuclear detonations. Gamma radiation detectors and recorders were placed in foxholes and above ground adjacent to foxholes at several distances and directions from ground zero. Dose rate versus time data in the free field and in foxholes were obtained from initial radiation, cloud passage, and fallout. Total dose data were obtained with film packs. Analysis of results is included. At close-in distances, very soon after detonation, transit dose rates were greatly affected by terrain contours and the significance of transit radiation was hidden by the initial radiation dose rate. Radiation intensities in foxholes located upwind from low-yield nuclear detonations and on the fringes of the fallout pattern were significantly influenced by transit radiation. In the downwind direction directly under the cloud travel line, the residual radiation contribution masked out the transit dose-rate contribution by large factors. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 29, 1963
- Accession Number
- AD0345006
Entities
People
- M. J. Schumchyk