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Simple model relating recombination rates and non-proportional light yield in scintillators

Bizarri, G., Moses, W., Singh, Jai, Vasil'ev, A. and Williams, R. (2009). Simple model relating recombination rates and non-proportional light yield in scintillators. Physica Status Solidi C: Current Topics in Solid State Physics,6(1):97-100.

Document type: Journal Article

IRMA ID 80801245xPUB68
Title Simple model relating recombination rates and non-proportional light yield in scintillators
Author Bizarri, G.
Moses, W.
Singh, Jai
Vasil'ev, A.
Williams, R.
Journal Name Physica Status Solidi C: Current Topics in Solid State Physics
Publication Date 2009
Volume Number 6
Issue Number 1
ISSN 1610-1634   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-61449268237
Start Page 97
End Page 100
Total Pages 4
Place of Publication Weinheim, Germany
Publisher John-Wiley - VCH
Field of Research 0206 - Quantum Physics
HERDC Category C1 - Journal Article (DEST)
Abstract We present a phenomenological approach to derive an approximate expression for the local light yield along a track as a function of the rate constants of different kinetic orders of radiative and quenching processes for excitons and electron-hole pairs excited by an incident -ray in a scintillating crystal. For excitons, the radiative and quenching processes considered are linear and binary, and for electron-hole pairs a ternary (Auger type) quenching process is also taken into account. The local light yield (YL) in photons per MeV is plotted as a function of the deposited energy, -dE /dx (keV/cm) at any point x along the track length. This model formulation achieves a certain simplicity by using two coupled rate equations. We discuss the approximations that are involved. There are a sufficient number of parameters in this model to fit local light yield profiles needed for qualitative comparison with experiment.
DOI http://dx.doi.org/10.1002/pssc.200879814   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Tue, 12 May 2009, 10:45:37 CST by Sarena Wegener