Neutron-induced thermoluminescence properties of Tb3+-doped Ca2B2O5ceramics

Hajime Komiya, Ichiro Kawamura, Hiroki Kawamoto, Yutaka Fujimoto, Masanori Koshimizu, Hiromi Kimura, Go Okada, Yusuke Koba, Takayuki Yanagida, Genichiro Wakabayashi, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

Abstract

We fabricated 10B-enriched (10B ceramics) and 11B-enriched (11B ceramics) Ca2B2O5:Tb ceramics as thermoluminescence (TL) materials for neutron detection applications. The TL properties of the ceramics after X-ray irradiation, particle beam irradiation, and neutron irradiation were investigated. The TL properties of the 10B ceramics and 11B ceramics after X-ray irradiation were similar, whereas the neutron-induced TL intensity of the 10B ceramics was significantly higher than that of the 11B ceramics. The different TL properties of these ceramics are due to the α-rays, Li ions, and γ-rays generated during the 10B(n, α)7Li reaction. The lower limit of neutron detection by the ceramics was less than 2 107 neutrons cm-2, which was lower than those of several previously reported TL materials. Therefore, these ceramics can be applied as TL dosimetry materials for neutron detection.

Original languageEnglish
Article number092008
JournalJapanese journal of applied physics
Volume60
Issue number9
DOIs
Publication statusPublished - 2021 Sep

ASJC Scopus subject areas

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

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