Development of fiber-optic radiation sensor for gamma-ray spectroscopy: comparative study on efficiency of LYSO:Ce, YSO:Ce, and BGO scintillation crystals

D. Jeon; W. J. Yoo; S. H. Shin; S. Hong; S. G. Kim; H. I. Sim; K. W. Jang; S. Cho; B. Lee

doi:10.1117/12.2034201

15 October 2013 Development of fiber-optic radiation sensor for gamma-ray spectroscopy: comparative study on efficiency of LYSO:Ce, YSO:Ce, and BGO scintillation crystals

D. Jeon, W. J. Yoo, S. H. Shin, S. Hong, S. G. Kim, H. I. Sim, K. W. Jang, S. Cho, B. Lee

Author Affiliations +

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89241S (2013) https://doi.org/10.1117/12.2034201
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

In this study, we fabricated a fiber-optic radiation sensor using three kinds of inorganic scintillation crystals with the same dimension, such as LYSO:Ce, YSO:Ce, and BGO. Gamma-ray energy spectra for Cs-137 were measured with three kinds of inorganic scintillators to select an optimum scintillator that is suitable to use for gamma-ray energy spectroscopy. The total counts of the scintillating lights, were also obtained according to the activity of Cs-137. As a result, the energy spectra measured using the three scintillators were clearly different, thereby they showed clear distinction about the energy resolution and position of the inherent photopeak of Cs-137. Although all scintillators had a linear response over the activity of Cs-137, we selected LYSO:Ce as an optimum scintillator because it provided good energy resolution and the highest light output in our experimental setup.

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D. Jeon, W. J. Yoo, S. H. Shin, S. Hong, S. G. Kim, H. I. Sim, K. W. Jang, S. Cho, and B. Lee "Development of fiber-optic radiation sensor for gamma-ray spectroscopy: comparative study on efficiency of LYSO:Ce, YSO:Ce, and BGO scintillation crystals", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89241S (15 October 2013); https://doi.org/10.1117/12.2034201

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