Light-ion-induced Li ionization of 46 ≤ Z ≤ 60 elements: First-and second-order corrections to PWBA

Vigilante, M.; Cuzzocrea, P.; Cesare, N. De; Murolo, F.; Perillo, E.; Spadaccini, G.

doi:10.1016/0168-583x(90)90493-e

Cited by 53 publications

(17 citation statements)

References 20 publications

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“…Early in the last decade, Sarkadi and Mukoyama [33] suggested that this mismatch could be due to "collision-induced intra-shell transition" (subshell coupling} occurring during the L-shell ionization. [30] have modified the binding correction and made a united-atom-ECPSSR recalculation for proton and helium ions for some elements. Even after introducing the subshell coupling, the L-subshell discrepancy could not be removed.…”

Section: Introductionmentioning

confidence: 99%

L-subshell ionization cross sections in gold and bismuth by 3.6–9.5-MeV carbon and 4.0–7.2-MeV oxygen ions

et al. 1994

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L-subshell ionization cross sections of Au and Bi induced by C"+ and 0'+ ions have been measured for impact energies ranging from 0.25 to 0.79 MeV/u. The data have been compared with the predictions of the ECPSSR [perturbed-stationary-state (PSS) theory with energy-loss (E), Coulomb deflection (C), and relativistic corrections (R)] theory. Reasonable agreement between theory and experiment is observed for the L&(2s&&2) and L3(2p3/2) subshells. For the L&(2p&z&) subshell, however, large disagreement between the data and the ECPSSR predictions persists. This difference could be due to the "collision-induced intrashell" mechanism that was suggested by Sarkadi and Mukoyama [J. Phys. B 14, L255 (1981)].PACS number(s): 34.50.Fa

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Section: Introductionmentioning

confidence: 99%

L-subshell ionization cross sections in gold and bismuth by 3.6–9.5-MeV carbon and 4.0–7.2-MeV oxygen ions

et al. 1994

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“…Vigilante et al [4], realizing that the original ECPSSR theory over-estimated the binding effect for decreasing projectile velocities, proposed to "saturate" the binding correction at a value which corresponds to the binding energy of the united atom; i.e., projectile plus nucleus. Hence,…”

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confidence: 99%

An improved version of ISICS: a program for calculating K-, L- and M-shell cross sections from PWBA and ECPSSR theory using a personal computer

Cipolla

2007

Computer Physics Communications

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“…Following Vigilante et al[41], various schemes have been suggested to combine the UA and SA treatments. In the ECUSAR theory, the united and separated atom (USA) functions are derived and valid in the complementary collision regimes of slow and intermediate to fast collisions, respectively, and smoothly joined with a simple formula[10] …”

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confidence: 99%

Effects of multiple ionization and intrashell coupling inL-subshell ionization by heavy ions

et al. 2004

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L-subshell ionization cross sections are extracted from measured L␣, L␤, L␥, L␥ 1 , L␥ 23 , and L␥ 44 x-ray production cross sections in thin targets of 75 Re, 78 Pt, and 79 Au bombarded by 4 -8 MeV C 3+ ions. For each projectile energy, using the fluorescence and Coster-Kronig yields recently recommended by Campbell with an amendment for multiple ionization effects, a mutually consistent set of ionization cross sections is extracted from L␣ and six pairs of other L-line x-ray production cross sections. Extracted L 1 -, L 2 -, L 3 -ionization cross sections are compared with the predictions of the ECPSSR theory-which accounts for the energy ͑E͒ loss and Coulomb ͑C͒ deflection of the projectile as well as for perturbed-stationary state (PSS) and relativistic ͑R͒ nature of L subshells-and its modification, ECUSAR-IS. In the ECUSAR-IS theory, the PSS effect is calculated with a united and separated atom (USA) treatment and the intrashell (IS) coupling is accounted for by multiplicative factors of Sarkadi and Mukoyama normalized so that the sum of L-subshell ECUSAR-IS cross sections equals ECUSAR L-shell ionization cross section without the IS correction. Further improvement of this theory to account for better wave functions in its evaluation is made by scaling it with ratios of DiracHartree-Slater cross sections to the screened hydrogenic formulas used in the ECPSSR theory. Very good agreement is obtained with L 2 and L 3 ionization data. For the L 1 subshell, the data are in good agreement with the ECPSSR theory but are by factors of 2 to 3 above the results of its modifications.

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Light-ion-induced Li ionization of 46 ≤ Z ≤ 60 elements: First-and second-order corrections to PWBA

Cited by 53 publications

References 20 publications

L-subshell ionization cross sections in gold and bismuth by 3.6–9.5-MeV carbon and 4.0–7.2-MeV oxygen ions

L-subshell ionization cross sections in gold and bismuth by 3.6–9.5-MeV carbon and 4.0–7.2-MeV oxygen ions

An improved version of ISICS: a program for calculating K-, L- and M-shell cross sections from PWBA and ECPSSR theory using a personal computer

Effects of multiple ionization and intrashell coupling inL-subshell ionization by heavy ions

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