Excitonic processes and their contribution to nonproportionality observed in the light yield of inorganic scintillators

Jai Singh, Alexander Koblov

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Using the derived expression for the light yield in a scintillator, the influence of linear radiative and non-radiative (quenching) rates on the nonproportionality in light yield is studied. It is found that if the excitation created within the electron track initiated by a ?-photon incident on a scintillator remains mainly excitonic, then nonproportionality can be minimised by inventing a scintillator material with linear radiative rate >10 7 s-1, linear quenching rate <106 s -1 and track radius ?70 nm along with maintaining the rates of other nonlinear processes as discovered earlier. If one can increase the linear radiative rate to 109 s-1, then the nonproportionality can be eliminated at a track radius >20 nm. 
    Original languageEnglish
    Pages (from-to)33-1-33-6
    Number of pages6
    JournalEuropean Physical Journal B
    Volume86
    Issue number2
    DOIs
    Publication statusPublished - 2013

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