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A study on the radiation hardness of lead tungstate crystals

Zhu, R. Y. and Deng, Q. and Newman, H. and Woody, C. L. and Kierstead, J. A. and Stoll, S. P. (1998) A study on the radiation hardness of lead tungstate crystals. IEEE Transactions on Nuclear Science, 45 (3). pp. 686-691. ISSN 0018-9499. http://resolver.caltech.edu/CaltechAUTHORS:20181212-103953977

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Abstract

This report presents recent progress of a study on the radiation damage in lead tungstate (PbWO_4) crystals. The dose rate dependence of radiation damage in PbWO_4 has been observed. An optimization of the oxygen compensation through post-growth thermal annealing has led to PbWO_4 samples with significantly improved radiation hardness. Front irradiation is found to cause a factor of 2 to 6 times less severe damage than uniform irradiation. Lanthanum doping was found not to be a determining factor for PbWO_4 radiation hardness improvement. Finally, a TEM/EDS analysis revealed that the radiation damage in PbWO_4 crystals is caused by oxygen vacancies.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/23.682613DOIArticle
ORCID:
AuthorORCID
Zhu, R. Y.0000-0003-3091-7461
Newman, H.0000-0003-0964-1480
Additional Information:© 1998 IEEE. Work at Caltech supported in part by U.S. Department of Energy Grant No. DE-FG03-92-ER40701, and at BNL in part by US. Department of Energy Contract No. DE-AC02-CH7600016. We thank Prof. Z.W. 'fin of SIC and Dr. G. Cheng of BGFU for providing PbWO_4 samples described in this report. Many inspiring and interesting discussions with Drs. M. Kobayashi, J.Y. Liao, G.Q. Wu anld Z.W. Yin are also acknowledged. Drs. E Nessi and P. Lecomte cross checked the light output measurement described in Section II.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-92-ER40701
Department of Energy (DOE)DE-AC02-CH7600016
Record Number:CaltechAUTHORS:20181212-103953977
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181212-103953977
Official Citation:R. Y. Zhu, Q. Deng, H. Newman, C. L. Woody, J. A. Kierstead and S. P. Stoll, "A study on the radiation hardness of lead tungstate crystals," in IEEE Transactions on Nuclear Science, vol. 45, no. 3, pp. 686-691, June 1998. doi: 10.1109/23.682613
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91723
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Dec 2018 19:01
Last Modified:12 Dec 2018 19:01

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