Author: "Quarati, F. G. A." / Topic: luminescence - Searchworks@Jio Institute Digital Library Search Results

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Author: Drozdowski, W., Dorenbos, P., Bos, A. J. J., Bizarri, G., Owens, A., and Quarati, F. G. A.
Subjects: SCINTILLATORS, IONIZATION (Atomic physics), LUMINESCENCE, PHOSPHORS, GAMMA ray spectrometer, SPACE flight
Abstract: CeBr3 crystals have been studied to assess their utility as potential gamma ray spectrometers for future ESA planetary missions. Pulse height spectra, scintillation time profiles, X-ray excited emission spectra, and photoluminescence spectra have been recorded as a function of temperature between 78 and 600 K. In addition, the influence of exposing CeBr3 to various doses of gamma rays from a strong 60Co source on its scintillation performance has been investigated. [ABSTRACT FROM AUTHOR]
Published: 2008
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Author: Drozdowski, W., Dorenbos, P., Bos, A. J. J., Kraft, S., Buis, E. J., Maddox, E., Owens, A., Quarati, F. G. A., Dathy, C., and Ouspenski, V.
Subjects: LUMINESCENCE, THERMOLUMINESCENCE, RADIATION, CRYSTALS, GAMMA rays, SCINTILLATORS
Abstract: The effect of high dose 60Co gamma irradiation on photoelectron yield, energy resolution, optical transmission, scintillation time profiles and thermoluminescence glow curves of LaBr3:5%Ce and LaCl3:10%Ce crystals has been investigated. Both materials show lower yields and deteriorated resolutions after exposure to a strong 60Co source, however their transmission, yield proportionality, scintillation decay, and thermoluminescence remain unaffected. Initial scintillation characteristics can be retrieved neither by spontaneous recovery nor upon heating in vacuum. [ABSTRACT FROM AUTHOR]
Published: 2007
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