Research and development of Ce-doped GSO scintillation crystals

Mitsuru Ishii; Masaaki Kobayashi; Hiroyuki Ishibashi; Seikichi Akiyama; Charles L. Melcher

doi:10.1117/12.187256

21 September 1994 Research and development of Ce-doped GSO scintillation crystals

Mitsuru Ishii, Masaaki Kobayashi, Hiroyuki Ishibashi, Seikichi Akiyama, Charles L. Melcher

Proceedings Volume 2305, Gamma-Ray Detector Physics and Applications; (1994) https://doi.org/10.1117/12.187256
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We review the status quo and the history of development of Ce doped GSO (Gd₂SiO₅:Ce) single crystals, a typical heavy and fast scintillator of large light output. GSO:Ce has 6.7 g/cm³ in density, 1.38 cm in radiation length and 30-60 ns in decay constant. The light output is two times as large as BGO. It shows, overall, the best performance among all the scintillators developed until now. The radiation damage caused by gamma ray from Co, proton in GeV order and thermal neutrons were studied on GSO:Ce crystals with various Ce concentrations. A description is given on the luminescence mechanism by Ce in GSO and growth technology for crack-free large GSO crystals. We believe that GSO crystals are scintillators having all the excellent characteristics required for gamma ray detectors.

Citation Download Citation

Mitsuru Ishii, Masaaki Kobayashi, Hiroyuki Ishibashi, Seikichi Akiyama, and Charles L. Melcher "Research and development of Ce-doped GSO scintillation crystals", Proc. SPIE 2305, Gamma-Ray Detector Physics and Applications, (21 September 1994); https://doi.org/10.1117/12.187256

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