Published June 11, 2005 | Version v1
Journal article Metadata-only

A new radiation damage phenomenon of LSO:Ce scintillation crystal

Creators

  • 1. Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), No. 215 Chengbei Road, Jiading, Shanghai 201800 (China)

Description

Cerium-doped lutetium oxyorthosilicate (LSO:Ce) is an excellent scintillator with a large radiation hardness. But, in this work, some LSO:Ce crystals grown by SIC showed a new radiation damage phenomenon after exposure to 60Co γ-rays. An absorption band peaking at near 430 nm was observed. Because of the absorption the emission spectra were distorted but no new emission center appeared. There is no new thermoluminescence (TL) peak in the TL curve but the relative intensity of peaks is different from that of normal samples. The peaks at 490 and 546 K may be attributed to the appearance of absorption band that was proved by annealing at different temperatures. Absorption band can be eliminated a little at 200 deg C and completely at 300 deg C, either in air or in N2 atmosphere

Additional details

Identifiers

DOI
10.1016/j.nima.2005.01.342;
PII
S0168-9002(05)00578-4;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
545
Journal Issue
1-2
Journal Page Range
p. 273-277
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37036637
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION; AIR; ANNEALING; ATMOSPHERES; CERIUM; COBALT 60; CRYSTALS; DAMAGE; DIAGRAMS; DOPED MATERIALS; EMISSION SPECTRA; GAMMA RADIATION; LUTETIUM; RADIATION HARDENING; SCINTILLATIONS; THERMOLUMINESCENCE
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; COBALT ISOTOPES; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; FLUIDS; GASES; HARDENING; HEAT TREATMENTS; INFORMATION; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LUMINESCENCE; MATERIALS; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; PHOTON EMISSION; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; RARE EARTHS; SORPTION; SPECTRA; YEARS LIVING RADIOISOTOPES

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.