Work

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

Year: 2026

Type: article

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.

Source: Sensors and Materials

DOI: 10.18494/sam6019

Authors: Keiichiro Miyazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida

Institution: Nara Institute of Science and Technology

Language: English

Topic: Radiation Detection and Scintillator Technologies

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $748

Funders: Research Center for Biomedical Engineering, Japan Society for the Promotion of Science