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Published August 1, 1994 | metadata_only
Journal Article

The role of gadolinium in the scintillation processes of cerium-doped gadolinium oxyorthosilicate


The origins of two decay constants in the scintillation decay of cerium-doped gadolinium oxyorthosilicate (Gd_2(SiO_4)O:Ce) are investigated using UV light. We find that build-ups and long decay components observed with gamma-ray excitation are due to non-radiative energy transfer from Gd to Ce. The transfer rate from Gd to Ce increases as the Ce concentration increases. The gamma-ray excited decay curves of GSO are composed of prompt Ce emission and delayed Ce emission (transfer of energy through Gd), as observed by UV excitation.

Additional Information

© 1994 Elsevier Science B.V. Received 24 January 1994. We are grateful to Drs. John Sutherland, John Trunk and Krzysztof Polewski in the Biology Department, Brookhaven National Laboratory for their help in obtaining the decay data. We would like to thank Drs. John J. Simonetti and Stefan Vajda at EMR Photoelectric for their valuable comments and Dr. Hiroyuki Ishibashi and Takeshi Utsu at Hitachi Chemical Co., Ltd. for providing GSO samples. We also would like to thank Dr. Oliver Mullins, Dr. Yifu Zhu and Ralph Manente for useful discussions.

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August 20, 2023
August 20, 2023