Investigation of the Relation of Decay Time Differences and α-β Ratios for Newly Developed Scintillators

Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, we found that the decay times between α particles and γ photons were different for the recently developed scintillators. We also noticed that α - β ratios were different for these scintillators. We expect that there might be a relation between these two properties. Thus, we measured the α - β ratios and the decay time differences between α particles and γ photons for the newly developed scintillators and investigated the relationship between them. We measured the α - β ratios and decay times for five scintillators: (LaGd)2Si2O7 (LaGPS), Gd2Si2O7 (GPS), ceramic Gd3Al2Ga3O12(GGAG), ceramic (YGd)3(GaAl)5O12:Ce (YGAG), and single-crystal Gd3Al2Ga3O12 (GAGG). After the measurements, we estimated the correlation between the α - β ratios and the decay time differences between α particles and γ photons. Among these scintillators, as the α - β ratios increased, decay time differences decreased with the correlation coefficient ( R2 ) of more than 0.8. We conclude that there was a negative correlation between α - β ratios and the decay time differences between α particles and γ photons for the measured newly developed scintillators.

Original languageEnglish
Article number8854141
Pages (from-to)2324-2328
Number of pages5
JournalIEEE Transactions on Nuclear Science
Volume66
Issue number11
DOIs
Publication statusPublished - 2019

Keywords

  • decay time difference
  • relation
  • scintillators
  • α-β ratio

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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