Comparison of Scintillation Light Yield of CWO and BGO Single Crystals for Gamma Ray Detection

Akapong Phunpueok; Voranuch Thongpool; Sarawut Jaiyen; Hua  Shu Hsu

doi:10.4028/www.scientific.net/AMM.901.89

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 901Comparison of Scintillation Light Yield of CWO and...

Comparison of Scintillation Light Yield of CWO and BGO Single Crystals for Gamma Ray Detection

Abstract:

Nowadays, radioactive materials are being applied in medical imaging. Because humans cannot observe radiation, radiation detection materials are very important to humans. A scintillator is a material that can change gamma photons to visible photons. Good scintillators should have the following properties: high scintillation light yield, good energy resolution, and high density. In this work, the scintillation light yield property of CWO crystals was studied due to its interesting properties, such as high stopping power and low hygroscopicity. CWO crystals were compared with BGO crystals. From the results, it was found that the BGO crystals showed higher scintillation light yield value at 662 keV energy from ¹³⁷Cs radioactive source than the CWO crystals, resulting in better energy resolution value. The intrinsic light yield and loss parameters for both crystals are also presented in this work.

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Periodical:

Applied Mechanics and Materials (Volume 901)

Pages:

89-94

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.901.89

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Online since:

August 2020

Authors:

Akapong Phunpueok*, Voranuch Thongpool, Sarawut Jaiyen, Hua Shu Hsu

Keywords:

BGO, CWO, Energy Resolution, Scintillation Light Yield

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* - Corresponding Author

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