Accession Number : AD0621127

Title :   NEUTRON-FIELD AND INDUCED-ACTIVITY MEASUREMENTS-OPERATION BREN

Corporate Author : NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA

Personal Author(s) : Tomnovec, F M ; Ferguson, J M

PDF Url : AD0621127

Report Date : Sep 1965

Pagination or Media Count : 44

Abstract : Operation BREN (Bare Reactor Experiment, Nevada) was an experiment that used a 1500-ft tower and a bare (no shielding) fast nuclear reactor patterned on 'Godiva' to simulate a nuclear weapon detonated at various heights above the ground. Certain characteristics of the neutron field from this unshielded reactor were measured. The activation of gold, manganese, sulfur, cadmium-covered gold, and cadmium-covered manganese was determined as a function of distance from the reactor and of depth in the ground. The data show how those parameters, important for calculating neutron-induced activity in the soil, vary as a function of the height of the source and the slant range from the source.

Descriptors :   *AIRBURST, *NEUTRON ACTIVATION, *NUCLEAR EXPLOSIONS, CADMIUM, GOLD, MANGANESE, MEASUREMENT, NUCLEAR REACTORS, RADIOACTIVITY, SIMULATION, SOILS, SULFUR

Subject Categories : Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE