Calculation of electron emission from a tantalum foil irradiated by 100-kV and 50-kV x-rays

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Two Monte Carlo programs, XITRAN and XMTRAN, were developed for calculating the emission of electrons from high-Z foils irradiated with x rays. XITRAN follows all individual elastic collisions of electrons with atoms, whereas XMTRAN uses the condensed-random-walk model. Both codes take into account photo-electrons, fluorescence radiation, and Auger electrons. Comparisons are made with an experiment by Dolan at Sandia Laboratories involving the backward and forward emission of electrons from a tantalum foil irradiated by 100-kV and 50-kV x-ray beams. There is good agreement between results from the XITRAN and XMTRAN codes. There emitted per incident x-ray photon, and in regard ... continued below

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88 p.

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Berger, M.J. March 1, 1998.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Two Monte Carlo programs, XITRAN and XMTRAN, were developed for calculating the emission of electrons from high-Z foils irradiated with x rays. XITRAN follows all individual elastic collisions of electrons with atoms, whereas XMTRAN uses the condensed-random-walk model. Both codes take into account photo-electrons, fluorescence radiation, and Auger electrons. Comparisons are made with an experiment by Dolan at Sandia Laboratories involving the backward and forward emission of electrons from a tantalum foil irradiated by 100-kV and 50-kV x-ray beams. There is good agreement between results from the XITRAN and XMTRAN codes. There emitted per incident x-ray photon, and in regard to the angular distribution of the emerging electrons. In regard to the electron energy spectra, there is fair agreement down to a spectral energy of 20 keV, whereas below 20 keV the calculated spectra lie considerably below the measurements.

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88 p.

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OSTI as DE98004484

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  • Other Information: PBD: Mar 1998

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  • Other: DE98004484
  • Report No.: SAND--98-0627
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 585067
  • Archival Resource Key: ark:/67531/metadc689922

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  • March 1, 1998

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 13, 2016, 1:02 p.m.

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Berger, M.J. Calculation of electron emission from a tantalum foil irradiated by 100-kV and 50-kV x-rays, report, March 1, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc689922/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.