Mao, Rihua and Zhang, Liyuan and Zhu, Ren-Yuan (2012) Quality of a 28 cm Long LYSO Crystal and Progress on Optical and Scintillation Properties. IEEE Transactions on Nuclear Science, 59 (5). pp. 2224-2228. ISSN 0018-9499. https://resolver.caltech.edu/CaltechAUTHORS:20121204-103203547
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Abstract
Because of their high stopping power and fast and bright scintillation, cerium doped LSO and LYSO crystals have attracted a broad interest in the physics community pursuing precision electromagnetic calorimeter for future high energy physics experiments. Their excellent radiation hardness against γ -rays, neutrons and charged hadrons also makes them a preferred material for calorimeters to be operated in a severe radiation environment, such as the HL-LHC. An effort was made at SIPAT to grow 25 X_0 (28 cm) long LYSO crystals for high energy physics applications. In this paper, the optical and scintillation properties and its radiation hardness against γ -ray irradiations up to 1 Mrad are presented for the first 2.5×2.5×28 cm LYSO sample. An absorption band was found at the seed end of this sample and three other long samples, which was traced back to a bad seed crystal used in the corresponding crystal growth process. Significant progresses in optical and scintillation properties were achieved for large size LYSO crystals after eliminating this absorption band.
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Additional Information: | © 2012 IEEE. Manuscript received November 04, 2011; revised December 23, 2011; accepted December 28, 2011. Date of publication February 23, 2012; date of current version October 09, 2012. This work was supported in part by the U.S. Department of Energy under grant DE-FG03-92-ER-40701 and the U.S. National Science Foundation Award PHY-0612805. | ||||||
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Subject Keywords: | Crystal; light output; lutetium oxyorthosilicate; lutetium yttrium oxyorthosilicate; photo-luminescence; radiation damage, scintillator, transmission. | ||||||
Issue or Number: | 5 | ||||||
Record Number: | CaltechAUTHORS:20121204-103203547 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20121204-103203547 | ||||||
Official Citation: | Rihua Mao; Liyuan Zhang; Ren-Yuan Zhu; , "Quality of a 28 cm Long LYSO Crystal and Progress on Optical and Scintillation Properties," Nuclear Science, IEEE Transactions on , vol.59, no.5, pp.2224-2228, Oct. 2012 doi: 10.1109/TNS.2012.2184302 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 35785 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Jason Perez | ||||||
Deposited On: | 04 Dec 2012 21:35 | ||||||
Last Modified: | 03 Oct 2019 04:31 |
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