Evaluation of Scintillation Properties of LiBr:Yb for Thermal Neutron Detection

Sensors and Materials 2026 Open access

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Authors: Keiichiro Miyazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida
DOI: 10.18494/sam6019
Cited by: 0

Abstract

Scintillation properties of LiBr:Yb synthesized by the vertical Bridgman-Stockbarger method were investigated.Two emission peaks were observed at 415 and 450 nm under X-ray irradiation, which would be attributed to spin-allowed and spin-forbidden 5d-4f transitions of Yb 2+ , respectively.According to pulse height spectra, the highest light yield values (LY) were 3500 photons/neutron and 1900 photons/MeV under 252 Cf neutron and 137 Cs γ-ray irradiation, respectively, and the α/γ ratio was 0.38.Although the LY was lower than that of the commercial Li-glass scintillator (GS20), the α/γ ratio was comparable to or higher than that of GS20.

Fields of Study & Subjects

Radiation Detection and Scintillator Technologies Solid State Laser Technologies Nuclear materials and radiation effects

Publication details

Journal / source
Sensors and Materials
Volume
38
Issue
2
Pages
553–553
Publication date
5 February 2026
Language
EN