Recent Re-Measurement of Neutron and Gamma-Ray Spectra 1080 Meters from the APRD (Army Pulse Radiation Division) Critical Facility,

Abstract

Previously reported measurements of long-range air-transported neutron and gamma-ray spectra from the fast-critical facility at the US Army Aberdeen Proving Ground have been supplemented recently at the 1080-meter position. The results of these determinations are presented herein and compared to several recent calculations from other research establishments. In addition, a summary of all dosimetric measurements obtained in the period 1979-1982 are appended, as are new determinations of APRD soil composition. Integral quantities such as neutron and gamma-ray kermas are very well predicted by the latest calculations, however there still exist significant spectral differences. At short ranges calculated neutron spectra are somewhat softer than experimental measurements, but at the farthest range of 1080 meters agreement is surprisingly good. Gamma-ray spectra remain well-calculated at all ranges. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA141791

Entities

People

  • B. E. Hoffarth
  • H. A. Robitaille

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Dead Time
  • Detection
  • Experimental Data
  • Fast Neutrons
  • Fission Products
  • Gamma Rays
  • High Temperature
  • Ionization Chambers
  • Measurement
  • Neutron Spectrum
  • Nuclear Reactors
  • Plastic Explosives
  • Radiative Transfer
  • Scattering
  • Scintillation Counters
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Nuclear and Radiation Engineering.