Multiple outer-shell ionization effect in inner-shell x-ray production by light ions

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This article discusses multiple outer-shell ionization effect in inner-shell x-ray production by light ions.

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9 p.

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Lapicki, Gregory; Mehta, R.; Duggan, Jerome L.; Kocur, P. M.; Price, J. L. & McDaniel, Floyd Del. (Floyd Delbert), 1942- November 1986.

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This article discusses multiple outer-shell ionization effect in inner-shell x-ray production by light ions.

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9 p.

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Copyright 1986 American Physical Society. The following article appeared in Physical Review A, 34:5, http://link.aps.org/doi/10.1103/PhysRevA.34.3813

Abstract: L-shell x-ray production cross sections by 0.25-2.5-MeV ₂⁴He+ ions in 28Ni, 29Cu, 32Ge, 33As, 37Rb, 38Sr, 39Y, 40Zr, and 46Pd are reported. The data are compared to the first-Born approximation and the ECPSSR theory that accounts for the projectile energy loss (E) and Coulomb deflection (C) as well as the perturbed-stationary-state (PSS) and relativistic (R) effects in the treatment of the target L-shell electron. Surprisingly, the first Born approximation appears to converge to the data while the ECPSSR predictions underestimate them in the low-velocity limit. This is explained as the result of improper use of single-hole fluorescence yields. A heuristic formula is proposed to account for multiple ionizations in terms of a classical probability for these phenomena and, after it is applied, the ECPSSR theory of L-shell ionization is found to be in good agreement with the data.

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  • Physical Review A, 1986, College Park: American Physical Society

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  • Publication Title: Physical Review A
  • Volume: 34
  • Issue: 5
  • Pages: 9
  • Peer Reviewed: Yes

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  • November 1986

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  • Feb. 1, 2013, 9:58 a.m.

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  • April 2, 2014, 4:11 p.m.

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Lapicki, Gregory; Mehta, R.; Duggan, Jerome L.; Kocur, P. M.; Price, J. L. & McDaniel, Floyd Del. (Floyd Delbert), 1942-. Multiple outer-shell ionization effect in inner-shell x-ray production by light ions, article, November 1986; [College Park, Maryland]. (digital.library.unt.edu/ark:/67531/metadc139495/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.