L-subshell ionization cross sections for tungsten at low electron energies

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The L-subshell ionization cross sections for tungsten have been measured for incident electron beams of low energies. The electron energy was in the range of 1<EIL4. The values of the three L-subshell cross sections L1, L2, and L3 were deduced from the thick-target yields of L23, L1, and L1 x rays of tungsten. A differential method was employed in the deduction procedures. The x-ray spectra were obtained by an improved version of a single-crystal, high-angle goniometer. The shape of the energy dependence of the measured cross sections deviates from the predictions given by McGuire's scaling result as well as Gryzinski's classical scaling result.

Original languageEnglish
Pages (from-to)1930-1935
Number of pages6
JournalPhysical Review A
Issue number5
Publication statusPublished - 1979 Jan 1


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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