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Quality of a 28 cm Long LYSO Crystal and Progress on Optical and Scintillation Properties

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.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Zhang, Liyuan0000-0002-0898-787X
Zhu, Ren-Yuan0000-0003-3091-7461
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.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-92-ER-40701
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:
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
Deposited By: Jason Perez
Deposited On:04 Dec 2012 21:35
Last Modified:03 Oct 2019 04:31

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