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Fast Luminescence and Absorption in BGO and SiO2

Published online by Cambridge University Press:  21 February 2011

Vladimir Gavrilov  and
Stanislav Chernov
Vladimir Gavrilov*
Affiliation:
Institute of Physics, Latvian Academy of Sciences, Riga, Latvia
Stanislav Chernov
Affiliation:
Institute of Physics, Latvian Academy of Sciences, Riga, Latvia
*
Current address: 5885 Muldrow Rd., Sacramento, CA 95841, U.S.A.
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Abstract

The spectra and kinetics of the fast luminescence and optical absorption of Bismuth Germanate (BGO) after excitation by single high-power nanosecond and subnanosecond electron pulses were studied. The short-lived optical absorption of the center responsible for BGO scintillations is assigned. The cause for the low scintillation yield in BGO is discussed in comparison with analogous measurements in crystalline and amorphous silicon dioxide. The ultrafast (decay time < 50 ps) luminescence is observed and it is concluded that it can be connected to intraband transitions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 348 , 1994 , 303
Copyright
Copyright © Materials Research Society 1994

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References

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