A Monte Carlo Study of Radiation Trapping Effects

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    Abstract

    A Monte Carlo simulation of radiative transfer in an atomic beam is carried out to investigate the effects of radiation trapping on electron-atom collision experiments. The collisionally excited atom is represented by a simple electric dipole, for which the emission intensity distribution is well known. The spatial distribution, frequency and free path of this and the sequential dipoles were determined by a computer random generator according to the probabilities given by quantum theory. By altering the atomic number density at the target site, the pressure dependence of the observed atomic lifetime, the angular intensity distribution and polarisation of the radiation field is studied.
    Original languageEnglish
    Pages (from-to)645-653
    JournalAustralian Journal of Physics
    Volume50
    Publication statusPublished - 1997

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