Scintillation properties of in doped ZnO with different in concentrations

Takayuki Yanagida, Yutaka Fujimoto, Akira Yoshikawa, Yuui Yokota, Miyuki Miyamoto, Hideyuki Sekiwa, Jun Kobayashi, Taichi Tokutake, Kei Kamada, Shuji Maeo

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Using the liquid phase epitaxy (LPE) method we prepared the high crystalline quality In 3+ doped ZnO thin film scintillators with different Indium concentration of 26, 53, and 141 ppm. We evaluated their optical properties and radiation response, because there are few reports of radiation response of In-doped ZnO scintillator. In order to imitate the scintillator application, we measured the alpha-ray excited luminescence spectra. The emission bands peaking around 375 and 500 nm were observed, and with an increment of In3+, the intensity of both bands decreases. In the measurement of light yield, we optically coupled the sample with PMT R7600 by a silicone grease, and excitation was provided by 241 Am 5.5 MeV α-rays. The samples showed of about 10% of the light yield of BGO scintillator which was used as a reference. Under the same excitation the scintillation decay was measured in all the samples as well.

Original languageEnglish
Article number5485087
Pages (from-to)1325-1328
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume57
Issue number3 PART 2
DOIs
Publication statusPublished - 2010 Jun 1

Keywords

  • Gamma-ray detectors
  • Indium
  • Radiation detectors
  • Scintillation detectors

ASJC Scopus subject areas

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

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