Thermoluminescence Response of CaF2:Mn, CaFz:Dy and CaSO4:Tm to Protons and Alpha-Particles,

Abstract

Proton/gamma and alpha/gamma response ratios have been measured for very fine powders of the thermoluminescent phosphors CaF2:Mn, CaF2:Dy and CaSO4:Tm. This has been done as Part of an evaluation of these phosphors for use in a combined neutron/gamma thermoluminescent dosimeter which is made neutron sensitive by embedding the phosphor powder in an hydrogenous medium. The CaF2:Mn phosphor has been found to be marginally better than the other two for this purpose. Reduction in the measured proton/gamma response ratio with decreasing proton energy has been attributed primarily to relatively low response near the surfaces of the phosphor particles. Keywords: Thermoluminescence, Radiation dosimetry, Gamma, Proton, Alpha particle, Linear energy transfer, Canada.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1987
Accession Number
ADA187438

Entities

People

  • R. A. Gravelle
  • S. Mcgowan

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Absorption
  • Alpha Particles
  • Detection
  • Detectors
  • Dosimeters
  • Energy
  • Energy Transfer
  • Materials
  • Measurement
  • Optical Detectors
  • Particle Size
  • Particles
  • Proton Beams
  • Protons
  • Radiation
  • Sensitivity
  • Thermoluminescence

Fields of Study

  • Physics

Readers

  • Nuclear and Radiation Engineering.