Inner-Shell Ionization Cross Sections of Argon, Krypton, and Xenon by 1.5- to 5.0-MeV Protons

Winters, Loren M.; MacDonald, J.; Brown, M. D.; Ellsworth, L. D.; Chiao, T.

doi:10.1103/physreva.7.1276

Cited by 53 publications

(12 citation statements)

References 15 publications

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“…Perhaps the most interesting feature is displayed in figure 3 for Kr. For L-shell ionization the agreement of the present results with the measurements by Winters et al [41] and Czuchlewski et al [42], and with the ECPSSR is very good. However, for M-shell ionization the situation is different: we got a clear discrepancy with the ECPSSR results [35] and no experimental data is available.…”

Section: Inner-shell Ionizationsupporting

confidence: 90%

Impact parameter moments for ionization of Ne, Ar, Kr, and Xe by protons, considering different initial states and impact energies

Miraglia,

Montanari

2016

Preprint

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Tables of ab-initio total cross sections, probabilities at zero impact parameter, and impact parameter moments are presented concerning the ionization of Ne, Ar, Kr, and Xe by proton impact in the energy range (0.1-10) MeV. The calculations correspond to the continuum distorted wave eikonal initial state approximation (CDW-EIS) for energies up to 1 MeV, and to the first Born approximation for larger energies. The results displayed in the tables are disaggregated for the different initial bound states, considering all the shells for Ne and Ar, the L-M-N shells of Kr and the M-N-O shells of Xe. Our inner-shell ionization cross sections are compared with the available experimental data and with the ECPSSR results.

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Section: Inner-shell Ionizationsupporting

confidence: 90%

Impact parameter moments for ionization of Ne, Ar, Kr, and Xe by protons, considering different initial states and impact energies

Miraglia,

Montanari

2016

Preprint

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“…The total uncertainty of absolute cross sections was estimated to about _+ 20 % for measurements with the Si(Li) detector and about _+ 30 % for measurements with the proportional counter. To check our normalization, X-ray cross sections of Ar (K X-rays) and Kr (K and L X-rays) were measured for 2-4 MeV protons and compared to published values [16]. Agreement within errors was found in all measurements except for the Kr K-shell cross sections, where our results are systematically lower by 40 % compared to results by Winters et al [-16].…”

Section: Methodsmentioning

confidence: 63%

Inner-shell ionization created by fluorine ions in nearly symmetric collisions

1980

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We have measured projectile and target X-ray cross sections for F + Si, S, Ar and Kr collisions at projectile energies from 1 to 25 MeV. The experiments were performed under single collision conditions using a differentially pumped gas target. X-rays were measured by a Si(Li) detector and a proportional counter. The experimental cross sections are compared to predictions of theoretical models for direct and quasi-molecular ionization. Effects of multiple ionization that influence the K-shell fluorescence yields were examined using experimental information from line energy shifts and intensity ratios.

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“…The number of Ar K X-rays emitted in the collision was also recorded in a Si (Li) detector. Since the ionization cross section of Ar by 2 MeV protons is known [6], the mean number of target atoms can also be deduced from this measurement. The corresponding experimental arrangement is given in Fig.…”

Section: Split Polementioning

confidence: 99%

Production of projectile and targetK X-rays by single and multiple electron-capture in collisions of Si14+ and Si13+ ions with argon atoms at 4.5 and 5.5 MeV/amu

et al. 1984

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Projectile and target X-ray cross-sections have been measured in collisions of bare and hydrogenlike Silicon ions with argon atoms. Projectile energies are 125MeV and 153 MeV, i.e. the intermediate velocity region for K-shell capture. Coincidence measurements between X-ray photons and the scattered Si "+ projectiles with charge states n-1, n-2 and n-3 have been made. The relative contribution of charge exchange and direct ionization (or excitation) of the target K-shell has been obtained directly by this new method. Double K-shell electron transfer is demonstrated to be very large in the case of fully stripped Si ions. A thorough theoretical analysis of the data is carried out and multiple capture processes are evaluated using an independent electron model.

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Inner-Shell Ionization Cross Sections of Argon, Krypton, and Xenon by 1.5- to 5.0-MeV Protons

Cited by 53 publications

References 15 publications

Impact parameter moments for ionization of Ne, Ar, Kr, and Xe by protons, considering different initial states and impact energies

Impact parameter moments for ionization of Ne, Ar, Kr, and Xe by protons, considering different initial states and impact energies

Inner-shell ionization created by fluorine ions in nearly symmetric collisions

Production of projectile and targetK X-rays by single and multiple electron-capture in collisions of Si14+ and Si13+ ions with argon atoms at 4.5 and 5.5 MeV/amu

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