Neutron-Flux Mapping of AFRRI Exposure Rooms.

Abstract

The neutron flux in the Armed Forces Radiobiology Research Institute (AFRRI) reactor exposure rooms has been mapped by means of a National Bureau of Standards fission chamber. The chamber contained loadings of both 239 Pu and 237 Np, so that the reported fluxes are for neutrons greather than 10 and greater than 600 keV in energy. Most of the measurements were taken along the centerline height of the reactor core and perpendicular to the wall facing the reactor pool. A few measurements were also made at other heights and angles in order to establish the flux distribution in a wide volume in each exposure room. This mapping will aid neutron damage experiments at AFRRI by allowing a more precise determination of the neutron environment. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1978
Accession Number
ADA068460

Entities

People

  • Craig R. Heimbach

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Ballistic Missiles
  • Combat Surveillance
  • Dead Time
  • Electro-Optics
  • Fast Neutrons
  • Measurement
  • Neptunium
  • Neutron Flux
  • Neutrons
  • Power Levels
  • Reactor Cores
  • Standards
  • Steady State
  • Weapons
  • Weapons Effects

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Geodesy
  • Nuclear and Radiation Engineering.