Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators

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

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

We developed transparent ceramic scintillaotrs of Ce doped YAG, Ce and Nd codoped YAG, and Ce doped (GdY)AG, respectively. We cut them with a size of 5 × 5 × 5 mm3 for Ce:YAG and (Ce, Nd):YAG, and 5 × 5 × 2 mm3 for Ce:GYAG. At three temperature conditions, such as +20, 0, and -20°C, a temperature dependence of a light yield are measured, when they are coupled with avalanche photo diode, which is a S8664-55 type APD manufactured by Hamamatsu Photonics. In these conditions, light yield of them turned out to be ∼0.4, ∼0.1, and ∼ 0.25 times as large as that of Tl:CsI crystal. All of them show little temperature dependence of less than 10% in this 40 K temperature change. By measuring circuit noise and statistical noise due to excess noise factor of APD measurement system, we also study the temperature dependence of intrinsic energy resolution of these scintillators, in the range of 60 to 1400 keV. There are little temperature dependence observed, and it turned out to be about 5% at several hundreds keV.

本文言語English
ホスト出版物のタイトル2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
ページ1343-1346
ページ数4
DOI
出版ステータスPublished - 2007
イベント2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
継続期間: 2007 10月 272007 11月 3

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
2
ISSN(印刷版)1095-7863

Other

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

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング

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