Accession Number : AD0436183

Title :   DOSE MEASUREMENTS FOR NEUTRON STREAMING IN DUCTS,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s) : Doty,D. R.

Report Date : 26 MAR 1964

Pagination or Media Count : 40

Abstract : The purpose of this report is to describe an operating facility and present some preliminary findings concerning the streaming of neutrons in ducts of protective shelters. The experimental results are compared to a simplified theoretical treatment using the albedo approach. Dose measurements were obtained in a 3 x 3-foot concrete duct for thermal, 2.5-Mev, and 14.7-Mev neutrons using a 12-inch spherical energy-independent dosimeter. In the second leg, for all energies, the dose was found to have a higher drop-off than the theory predicted. Reasons for the discrepance are examined and a comparison of effective albedos is made for various energies. (Author)

Descriptors :   (*NEUTRON FLUX, MEASUREMENT), (*DUCT INLETS, SHELTERS), VENTILATION DUCTS, SHIELDING, NUCLEAR PHYSICS, FAST NEUTRONS, DOSE RATE, RADIATION MEASURING INSTRUMENTS, DOSIMETERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE