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Proceedings Paper

New transparent polycrystalline silicate scintillators
Author(s): Eric P. Bescher; Sarah Robson; John D. Mackenzie; Bradley E. Patt; Jan S. Iwanczyk; Edward J. Hoffman
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Paper Abstract

The sol-gel process was used in the fabrication of new polycrystalline silicate scintillators. Lutetium orthosilicate (LSO) is one of the most promising scintillators discovered in almost five decades, with a unique combination of important properties for X and (gamma) -ray spectroscopy, namely high density, fast decay, and large light yield. However, the practical utilization of LSO as a single crystal is hindered by difficulties related to high temperature crystal growth by the Czochralski method. In the new approach presented here, Ce-doped lutetium silicate crystals are grown from a gel. The processing temperatures are much lower than that of conventional processes. The polycrystalline scintillators are characterized by XRD, TEM, DTA, light decay measurement and gamma-ray spectral response.

Paper Details

Date Published: 2 May 2000
PDF: 8 pages
Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); doi: 10.1117/12.384331
Show Author Affiliations
Eric P. Bescher, Univ. of California/Los Angeles (United States)
Sarah Robson, Univ. of California/Los Angeles (United States)
John D. Mackenzie, Univ. of California/Los Angeles (United States)
Bradley E. Patt, Photon Imaging, Inc. (United States)
Jan S. Iwanczyk, Photon Imaging, Inc. (United States)
Edward J. Hoffman, Univ. of California/Los Angeles (United States)

Published in SPIE Proceedings Vol. 3943:
Sol-Gel Optics V
Bruce S. Dunn; Edward J. A. Pope; Helmut K. Schmidt; Masayuki Yamane, Editor(s)

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