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Title: Proton damage measurements of rare earth oxide scintillators

Journal Article · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
DOI:https://doi.org/10.1109/23.289294· OSTI ID:5090235
; ;  [1]; ;  [2]
  1. Nichols Research Corp., Huntsville, AL (United States)
  2. Alabama A and M Univ., Normal, AL (United States). Dept. of Physics

This paper reports on the development of a measurement technique to determine the degradation in light output under exposure to 3 MeV protons. The rare earth oxide scintillators included Gd{sub 2}O{sub 2}S doped with Pr. Tb, and Eu; Y{sub 2}O{sub 2}S doped with Tb and Eu; Y{sub 3}Al{sub 5}O{sub 12} (YAG) doped with Ce; and ZnS doped with Ag. Four scintillator samples were painted on a rotatable water cooled turret used to measure the proton beam current with thermocouples for temperature monitoring. The data acquisition and storage system consists of an ACRO module interfaced to a Macintosh SE/30 computer running LabVIEW software. Results indicate that the YAG doped with Ce scintillator coating withstood a proton dose an order of magnitude large than that tolerated by the other phosphor compounds. This fact has significant implication for the use of this material for experimental scintillator applications.

OSTI ID:
5090235
Journal Information:
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 38:2; ISSN 0018-9499
Country of Publication:
United States
Language:
English