GAMMA EXPOSURE RATE VERSUS TIME
Abstract
The primary objective of Project 2.2 was to measure initial- and residual-gamma-exposure rates as a function of time at various distances from high-yield-thermonuclear detonations. Secondary objectives were to measure the residual gamma-exposure rate at the lip of the crater from a high-yield, land-surface and to field test a prototype thermal detector to be used in a radiological-defense-warning system. The residual-gamma radiation was detected by an unsaturated-ion chamber, whose output determined the frequency of pulses that were recorded on electro-sensitive paper. Most of the initial gamma-radiation stations consisted of scintilla tion detectors whose output determined the frequency of pulses that were recorded on magnetic tape. Some initial-gamma instruments were similar to those used during Operation Castle. The exposure rate near the crater was measured with a detector-telemeter unit dropped from a helicopter. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 08, 1960
- Accession Number
- AD0339465
Entities
People
- B. Markow
- G. Carp
- Philip N. Brown
- R. Marmiroli
Organizations
- United States Army Communications-Electronics Command