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An analytical model of nonproportional scintillator light yield in terms of recombination rates

Bizarri, G., Moses, W., Singh, Jai, Vasil'ev, A. and Williams, R. (2009). An analytical model of nonproportional scintillator light yield in terms of recombination rates. Journal of Applied Physics,105(4):044507-1-044507-15.

Document type: Journal Article

IRMA ID 80801245xPUB49
Title An analytical model of nonproportional scintillator light yield in terms of recombination rates
Author Bizarri, G.
Moses, W.
Singh, Jai
Vasil'ev, A.
Williams, R.
Journal Name Journal of Applied Physics
Publication Date 2009
Volume Number 105
Issue Number 4
ISSN 1089-7550   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-61449252591
Start Page 044507-1
End Page 044507-15
Total Pages 1
Place of Publication New York, NY
Publisher American Institute of Physics
HERDC Category C1 - Journal Article (DEST)
Abstract Analytical expressions for the local light yield as a function of the local deposited energy (-dE/dx) and total scintillation yield integrated over the track of an electron of initial energy E are derived from radiative and/or nonradiative rates of first through third order in density of electronic excitations. The model is formulated in terms of rate constants, some of which can be determined independently from time-resolved spectroscopy and others estimated from measured light yield efficiency as a constraint assumed to apply in each kinetic order. The rates and parameters are used in the theory to calculate scintillation yield versus primary electron energy for comparison to published experimental results on four scintillators. Influence of the track radius on the yield is also discussed. Results are found to be qualitatively consistent with the observed scintillation light yield. The theory can be applied to any scintillator if the rates of the radiative and nonradiative processes are known.
DOI http://dx.doi.org/10.1063/1.3081651   (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: Mon, 22 Mar 2010, 12:15:28 CST by Sarena Wegener