Comparative studies of Lu1.95Y0.05SiO5:Ce and Lu0.7Y0.3AlO3:Ce single crystal scintillators for gamma-ray detection

Journal article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Chewpraditkul W., Wanarak C., Szczesniak T., Moszynski M.

Publisher: Elsevier

Publication year: 2014

Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (0168-583X)

Volume number: 326

Start page: 103

End page: 105

Number of pages: 3

ISSN: 0168-583X

eISSN: 1872-9584

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899422679&doi=10.1016%2fj.nimb.2013.08.076&partnerID=40&md5=9c454ea05204dd41e4641c3d891c02cb

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

The scintillation characteristics of Lu1.95Y0.05SiO5:Ce (LYSO:Ce) and Lu0.7Y0.3AlO3:Ce (LuYAP:Ce) single crystals were compared for γ-ray detection. The values of scintillation decay time and coincidence time resolution were evaluated. The scintillation decay of LYSO:Ce exhibits approximately a single-exponential component with decay time of 39 ns, whereas for LuYAP:Ce an intensity of the fast component with decay time of 21 ns is reduced (∼42%) and followed by a high intensity of slower components. The coincidence time resolution for 511 keV annihilation quanta of 234 and 894 ps was obtained, respectively, for LYSO:Ce and LuYAP:Ce detectors in coincidence experiment using a BaF2-based detector. The time resolution was also discussed in terms of a number of photoelectrons and decay time of the scintillation pulse. © 2014 Elsevier B.V. All rights reserved.

Keywords

Coincidence time resolution, scintillation decays