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Light Output and Radiation Damage in A YAIO3:Ce Crystal

Published online by Cambridge University Press:  21 February 2011

J.A. Kierstead
Affiliation:
Physics Department Brookhaven National Laboratory
S.P. Stoll
Affiliation:
Physics Department Brookhaven National Laboratory
C.L. Woody
Affiliation:
Physics Department Brookhaven National Laboratory
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Abstract

The optical absorption, light output and effects of radiation damage have been studied ina 2.1 × 2.1 × 2.1 cm3 crystal of YA103:Ce. The light yield produces approximately 2867 photoelectrons per MeV on a photomultiplier tube with abialkali photocathode. The scintillation and light transmission properties of the crystalwere characterized before and after exposure to 1 Mrad of 60 Co gamma rays. Significant radiation induced optical absorption was observed near the optical band edge ofthe crystal, along with an extremely intense phosphorescence after irradiation. Partial spontaneous recovery from the damage occurred at room temperature, and it was possible to induce additional recovery by optical bleaching.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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References

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