Luminescence and scintillation of Ce3+-doped high silica glass

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Author list: Chewpraditkul W., Shen Y., Chen D., Yu B., Prusa P., Nikl M., Beitlerova A., Wanarak C.

Publisher: Elsevier

Publication year: 2012

Journal: Optical Materials (0925-3467)

Volume number: 34

Issue number: 11

Start page: 1762

End page: 1766

Number of pages: 5

ISSN: 0925-3467

eISSN: 1873-1252

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876688073&doi=10.1016%2fj.optmat.2012.04.012&partnerID=40&md5=38f51a584afdccb595b8e164b27f667c

Languages: English-Great Britain (EN-GB)

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Abstract

Ce3+-doped high silica glass was prepared by impregnation of Ce ions into a porous silica glass followed by high temperature sintering in a CO reducing atmosphere. The characteristic emission of Ce3+ 5d → 4f transition peaking around 375 nm is observed in its luminescence spectra under UV and X-ray excitation. Its photoluminescence decay is governed by several tens of nanoseconds decay time. Its integral scintillation efficiency is comparable to that of a Bi4Ge3O12 (BGO) crystal under X-ray excitation. Scintillation light yield under gamma and alpha excitation was measured and compared with that of BGO. © 2012 Elsevier B.V. All rights reserved.

Keywords

Luminescence, Photoluminescence decay, Porous materials, Scintillation