Neutron-induced thermoluminescence properties of Tb3+-doped Ca2B2O5 ceramics. (1st September 2021)

• Record Type: Journal Article
• Authors: Komiya, Hajime; Kawamura, Ichiro; Kawamoto, Hiroki; Fujimoto, Yutaka; Koshimizu, Masanori; Kimura, Hiromi; Okada, Go; Koba, Yusuke; Yanagida, Takayuki; Wakabayashi, Genichiro; Asai, Keisuke
• Is Part Of: Japanese journal of applied physics. Volume 60:Number 9(2021)
• Publication Date: 2021-09-01
• Subjects: neutron detection -- thermoluminescence -- 10B(n -- α)7Li reaction -- borate; Physics -- Periodicals; 621.05
• DOI: 10.35848/1347-4065/ac1c90
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: We fabricated 10 B-enriched ( 10 B ceramics) and 11 B-enriched ( 11 B ceramics) Ca2 B2 O5 :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 10 B ceramics and 11 B ceramics after X-ray irradiation were similar, whereas the neutron-induced TL intensity of the 10 B ceramics was significantly higher than that of the 11 B ceramics. The different TL properties of these ceramics are due to the α -rays, Li ions, and γ -rays generated during the 10 B( n, α ) 7 Li reaction. The lower limit of neutron detection by the ceramics was less than 2 × 10 7 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.