Scintillation properties of undoped CdS for ionizing radiation detectors

Takayuki Yanagida, Masanori Koshimizu, Go Okada

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In the present study, nondoped CdS crystal with a size of 5 × 5 × 0.5mm3 was investigated on the optical and scintillation properties. The optical transmittance was 70% at wavelength longer than 500 nm, and the absorption edge was around 490 nm. The photoluminescence emission peak appeared around 490nm under 340nm excitation with 6.6 ns fast decay time. In X-ray induced radioluminescence spectrum over the temperature range of 7-300 K, it showed four emission bands around 490, 500-540 with several peaks, 600, and 750 nm. Temperature dependences of each emission band were different. The scintillation decay time was reproduced by two exponential decay components of 8 and 67 ns, and that for X-ray induced afterglow was approximately 0.1% at 20ms after switching of the X-ray irradiation.

Original languageEnglish
Article number02BC03
JournalJapanese journal of applied physics
Volume55
Issue number2
DOIs
Publication statusPublished - 2016 Feb

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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