THE NRDL GAMMA-/X-RAY SCATTERING FACILITY,

Abstract

A dual detector facility for measuring scattered gamma or x-radiation is described. This facility which uses highly shielded and collimated detectors, (NaI (Tl) and Ge(Li)), and a multi-channel pulse height analyzer, is capable of measuring the spectra of scattered radiation at angles from 1.3 to 135 degrees. Spectral measurements of scattered 137Cs gamma rays (661.6 keV) are currently being made; however, scattering measurements with primary photon energies ranging from 40 keV to 200 keV are planned. Energy resolutions (137Cs gamma rays) of the 4 x 4 in. NaI (Tl) dector and the 8 mm (w) x 18 mm (1) x 6 mm depletion depth Ge(Li) detector are 8.16% and approx. 2.86 keV respectively. Cross sections for differential coherent and incoherent scattering, as well as the photo-electric and the total mass absorption coefficients can be measured using this apparatus. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 22, 1966
Accession Number
AD0649998

Entities

People

  • W. J. Gurney

Organizations

  • Naval Radiological Defense Laboratory

Tags

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Analyzers
  • Coefficients
  • Detectors
  • Diffraction
  • Electromagnetic Scattering
  • Gamma Rays
  • Incoherent Scattering
  • Measurement
  • Pulse Height Analyzers
  • Radiation
  • Scattering
  • Spectra
  • X Ray Scattering
  • X Rays

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Pulsed Power and Plasma Physics.