Fiber-read radiation monitoring system using an optical fiber and red-emitting scintillator for ultra-high-dose conditions

Shohei Kodama, Shunsuke Kurosawa, Maki Ohno, Yuki Morishita, Hiroshi Usami, Masateru Hayashi, Makoto Sasano, Tetsushi Azuma, Hiroki Tanaka, Vladimir Kochurikhin, Akihiro Yamaji, Masao Yoshino, Satoshi Toyoda, Hiroki Sato, Yuji Ohashi, Kei Kamada, Yuui Yokota, Akira Yoshikawa, Tatsuo Torii

Research output: Contribution to journalArticlepeer-review

Abstract

We have developed a remote scintillation detector using a CCD spectrometer and a red-emitting scintillator coupled with a 20 m optical fiber for ultra-high-dose conditions. Gamma rays were detected with a conventional deep-red-emitting ruby scintillator and Cs2HfI6, which is a novel material with 700 nm red emission and a high light output. The scintillators were irradiated with gamma rays from a 60Co source under an effective dose rate from ∼0.002 to ∼1 kSv h-1. The integrated area of the Cs2HfI6 emission spectra was larger than that of the ruby, and good linearity of the Cs2HfI6 signal as a function of dose rate was confirmed.

Original languageEnglish
Article number047002
JournalApplied Physics Express
Volume13
Issue number4
DOIs
Publication statusPublished - 2020 Apr 1

ASJC Scopus subject areas

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

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