2011
DOI: 10.1103/physreva.84.042704
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Effectiveness of projectile screening in single and multiple ionization of Ne by B2+

Abstract: Pure multiple ionization cross sections of Ne by B 2+ projectiles have been measured in the energy range of 0.75 to 4.0 MeV and calculated using the continuum distorted wave-eikonal initial state approximation. The experiment and calculations show that the ionization cross sections by B 2+ , principally for the production of highly charged recoils, is strongly enhanced when compared to the bare projectile with the same charge state, He 2+ , at the same velocities.

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Cited by 18 publications
(35 citation statements)
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“…In tables 2, 3 and 4 we display the branching ratios used in this work for PCI of 0-6 electrons and all the shells of Ne, Ar, Kr and Xe. These values have already been employed with good results in previous calculations of MI of rare gases by protons, antiprotons and different positive ions [34][35][36][37][38]62]. A detailed discussion on the experimental branching ratios and the comparison of the different data available in the literature is included in [37].…”
Section: Nementioning
confidence: 99%
“…In tables 2, 3 and 4 we display the branching ratios used in this work for PCI of 0-6 electrons and all the shells of Ne, Ar, Kr and Xe. These values have already been employed with good results in previous calculations of MI of rare gases by protons, antiprotons and different positive ions [34][35][36][37][38]62]. A detailed discussion on the experimental branching ratios and the comparison of the different data available in the literature is included in [37].…”
Section: Nementioning
confidence: 99%
“…Working within the IPM, Montenegro and collaborators [54,55] and Kirchner and co-workers [56] proposed the inclusion of PCI in a semi-empirical way using experimental data of charge state distribution after single photoionization. This proposal boosted new experimental and theoretical research on this subject [57][58][59][60][61][62][63][64][65][66][67][68][69].…”
Section: Introductionmentioning
confidence: 99%
“…This method consists of measuring the growth rate of the emergent fraction of the incident beam, which undergoes charge exchanging collisions as a function of the gas target thickness at pressures low enough to ensure a single collision regime. The experimental procedures, cares and analysis performed in this work were the same used and described in detail by Wolff et al 13 The spatial separation on the position sensitive detector of the different projectile charge states emerging from the cell was made by the two electrostatic parallel plate analyzers, as already described in Ref. 14.…”
Section: B Absolute Total Charge Exchange Cross Sectionsmentioning
confidence: 99%
“…Despite the fact that the multiple ionization of rare gas targets in collision with ions has been extensively investigated over the past several decades, 1 it still continues to pose experimental [2][3][4][5][6][7][8][9][10][11][12][13][14][15] and theoretical challenges. 13,[16][17][18][19][20] For example, studies focused on the comparison between bare or partially stripped ions shed light on the role of the projectile effective charge state in direct multiple ionization processes of rare noble gases. 13 In this work, the total and partial absolute pure ionization and charge exchange cross sections were obtained by combining two techniques: (1) the growth-rate method for the measurement of the total charge exchanging cross sections based on a gas cell setup, and (2) the time-of-flight mass spectrometry and coincidence technique using an effusive gas jet in the molecular flow regime as a target.…”
Section: Introductionmentioning
confidence: 99%
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