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.
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| 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. | ||||||
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| 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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