Temperature dependence of α/γ-ratio of GSO(Ce) scintillator

Takayuki Yanagida, Akira Yoshikawa, Takeshi Itoh, Madoka Kawaharada, Fumio Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We measured temperature dependence of α/γ-ratio of three sample pieces of Ce 0.5 mol% doped Gd2SiO5 crystalline scintillator, which are cut from different ingots and have a dimension of 24 × 24 × 5 mm3. The temperature is controlled by a heat bath within ±0.5 K at + 20, 0, and -20 degrees of Celcius. By using intrinsic activity of 152Gd 2.14 MeV α-ray, it is irradiated uniformly inside the scintillator. To determine α/γ-ratio precisely, we measured input energy and pulse height linearity between 60 keV and 511 keV, at three temperature conditions. Then, we measure the α-ray response of the scintillator by a passive rejection any outer backgrounds by Pb and Sn blocks. As a result, α/γ-ratio of 0.5 mol% Ce doped GSO is turned out to be ∼ 0.175, and it showed a gradual temperature dependence of ∼ 0.4 keV/K.

Original languageEnglish
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages1347-1350
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: 2007 Oct 272007 Nov 3

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume2
ISSN (Print)1095-7863

Other

Other2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
CountryUnited States
CityHonolulu, HI
Period07/10/2707/11/3

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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