• Effect of gaunt factor correction in soft x-ray plasma diagnostics

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    • Keywords


      X-ray diagnostics; Gaunt factor; electron temperature; transmission ratio; free-free transitions; beryllium foils; photon energy

    • Abstract


      The effect of Gaunt factor correction on temperature estimation over a range 100 to 1500 eV had been studied. Greene’s analytical expression for the quantum mechanical Gaunt factor averaged over Maxwellian distribution is used. Transmission ratios are calculated with and without Gaunt factor for various combinations of beryllium foils, taking into account x-ray emission due to free-free transitions. A significant difference (≳ 15%) is observed between the temperatures estimated from classical and quantum mechanical curves, above 600 eV. Selection of foil combinations useful for estimating higher temperatures is also discussed.

    • Author Affiliations


      S V Deshmukh1

      1. Physical Research Laboratory, Ahmedabad - 380 009
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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