NDLI: Effects of neutron irradiations in various crystal samples of large size for future crystal calorimeter

Content Provider	IEEE Xplore Digital Library
Author	Liyuan Zhang Rihua Mao Ren-Yuan Zhu
Copyright Year	2009
Description	Author affiliation: California Institute of Technology, Pasadena, CA 91125 USA (Liyuan Zhang; Rihua Mao; Ren-Yuan Zhu)
Abstract	In this paper, we report an investigation on the radiation damage effects induced by neutrons in large size crystal scintillator: BGO, CeF3, LYSO:Ce and PWO. The irradiations were carried out by using fast neutrons from one 241Am-Be and two 252Cf sources. The optical and scintillation properties of these samples, including UV excitation and emission spectra, longitudinal transmission, light output, decay kinetics and light response uniformity, were measured before and after the irradiations. The neutron induced photo-current was also measured, and was used to estimate the readout noise under the neutron flux expected by an electromagnetic calorimeter at a very severe radiation environment. Because of its high light output and excellent radiation resistance LYSO:Ce crystal is found to have the smallest neutron induced readout noise as compared to other large size crystals, indicating it is a good candidate material for a future crystal calorimeter in a severe radiation environment.
Starting Page	2041
Ending Page	2044
File Size	537397
Page Count	4
File Format	PDF
ISBN	9781424439614
ISSN	10957863
DOI	10.1109/NSSMIC.2009.5402125
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neutrons Optical noise Electrical resistance measurement Electromagnetic measurements Working environment noise Electromagnetic radiation Stimulated emission Kinetic theory Noise measurement Electromagnetic interference
Content Type	Text
Resource Type	Article

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