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Monte Carlo simulations of electron thermalization in alkali iodide and alkaline-earth fluoride scintillators
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10.1063/1.4736088
/content/aip/journal/jap/112/1/10.1063/1.4736088
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/1/10.1063/1.4736088

Figures

Image of FIG. 1.
FIG. 1.

Kinetic energy distributions of the electrons at the end of the electron cascade for an incident γ-ray energy of 2 keV.

Image of FIG. 2.
FIG. 2.

Electron-phonon scattering rates as a function of electron energy.

Image of FIG. 3.
FIG. 3.

(a) Fraction of recombined electron-hole pairs as a function of incident γ-ray energy. (b) Distributions of the fractions of recombined electrons (FREs). (c) Initial electron-hole pair distribution functions. (b) and (c) are for an incident γ-ray energy of 2 keV. (d) Electron mean free paths as a function of electron energy.

Image of FIG. 4.
FIG. 4.

Thermalization distance distributions for the (a) recombined and (b) stopped electrons for a 2-keV incident γ-ray. The inset in (b) shows the ratio of LO phonon creation and LO phonon annihilation scattering rates.

Image of FIG. 5.
FIG. 5.

Thermalization time distributions for the (a) recombined and (b) stopped electrons for a 2-keV incident γ-ray. The inset in (b) shows an enlarged view of the time distribution of CsI.

Image of FIG. 6.
FIG. 6.

Fraction of Tl-trapped electrons and recombined electron-hole pairs as a function of Tl concentration for an incident γ-ray energy of 2 keV.

Image of FIG. 7.
FIG. 7.

Fraction of Tl-trapped, stopped and recombined electrons as a function of incident γ-ray energy for a Tl concentration of 0.1 mol. %.

Image of FIG. 8.
FIG. 8.

(a) Maximum thermalization time and (b) thermalization distance peak of the stopped electrons as a function of Tl concentration for an incident γ-ray energy of 2 keV. Inset shows the thermalization distance and time distributions for three Tl concentrations in CsI.

Tables

Generic image for table
Table I.

Primary and secondary model parameters.

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/content/aip/journal/jap/112/1/10.1063/1.4736088
2012-07-11
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Monte Carlo simulations of electron thermalization in alkali iodide and alkaline-earth fluoride scintillators
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/1/10.1063/1.4736088
10.1063/1.4736088
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