Single-, Double- and Triple-Electron Capture Cross Sections for Multicharged Slow Carbon Ions in H2, CH4, C2H6, C3H8and CO2Molecules

Itoh, Akio; Imanishi, N.; Fukuzawa, Fumio; Hamamoto, Nariaki; Hanawa, Shin–ichi; Tanaka, Takashi; Ohdaira, Toshiyuki; Saito, Manabu; Haruyama, Yoshio; Shirai, Toshizo

doi:10.1143/jpsj.64.3255

Cited by 19 publications

(16 citation statements)

References 27 publications

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“…C + 2 P (small Ã) and C + 4 P (large Ã) states data for N 2 collisions are from Lao [33], with the medium (Ã) representing the common 70% and 30% mix of states. Ar data (d): [22,30]; H 2 data: [30,[33][34][35][36]; N 2 data: [30][31][32]34]. [17]; h, [25]; d, [19]; .,Â [22]; j [37].…”

Section: Modeled Molecular Destructionmentioning

confidence: 99%

Quantifying absolute carbon isotope ratios by AMS

Vogel

Giacomo

Dueker

2013

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Modeled Molecular Destructionmentioning

confidence: 99%

Quantifying absolute carbon isotope ratios by AMS

Vogel

Giacomo

Dueker

2013

Nuclear Instruments and Methods in Physics Research Section B:

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“…This last calculation is presented to illustrate the need of a TE interpretation and to compare with previous calculations. The corresponding total cross sections, σ SC (= j σ SC j ), are shown in figure 4(a) together with the sudden approximation results of [3] and experimental values of Phaneuf et al [28], Dijkkamp et al [29] and Itoh et al [30]. We have also included in this figure the results for SEC into C 3+ (1s 2 3l)(σ 3 ) of Hoekstra et al [31], because at low v σ SC is practically identical to σ 3 .…”

Section: Sec Cross Sectionsmentioning

confidence: 99%

Model potential treatment of C⁴⁺+ H₂collisions at low impact energies

Errea

Gorfinkiel

Harel

et al. 2000

J. Phys. B: At. Mol. Opt. Phys.

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We present cross sections for electron capture in C 4+ + H 2 collisions in the energy range 50 eV amu −1 E 6 keV amu −1 , calculated using a model potential aproximation to treat the interaction of the active electron with C 4+ and H + 2 cores and an equivalent-electron bielectronic interpretation of the probabilities. The limitations of this method are analysed by comparison with the two-electron ab initio treatment. Double-electron-capture cross sections are also calculated using ab initio and model potential treatments. We propose a modified independent particle model to evaluate single-electron-capture cross sections.

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“…A list of some of the charge-transfer data published since 1988 is provided in Table 3. These data are largely taken from the review of Janev et al [39], the work of Kusakabe et al [40], Itoh et al [41], Rottmann et al [42], and the work that they quote. From the listing in Table 3, one can see that a majority of the available data is for electron capture by carbon ions.…”

Section: Carbon and Heavier Ionsmentioning

confidence: 99%

“…Open circles are the data of Rudd et al [30], and solid circles are the recommended data from the ORNL compilation [2] [42] al. [41] and Rottmann et al [42]. Note that the cross-sections were, for the most part, measured with incident ions that are in a mixture of ground and metastable excited states, i.e., some metastable excited states exist as a consequence of their method of production.…”

Section: Carbon and Heavier Ionsmentioning

confidence: 99%

Ionization and charge-transfer: basic data for track structure calculations

Toburen¹

1998

Radiation and Environmental Biophysics

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It is widely accepted that an understanding of the detailed structure of charged particle tracks is essential for interpreting the mechanistic consequences of energy deposition by high linear energy transfer (LET) radiation. The spatial relationship of events along the path of a charged particle, including excitation, ionization, and charge-transfer, govern subsequent chemical, biochemical, and biological reactions that can lead to adverse biologic effects. The determination of spatial patterns of ionization and excitation relies on a broad range of cross-section data relating the interactions of charged particles to the molecular constituents of the absorbing medium. It is important that these data be absolute in magnitude, comprehensive in scope, and reliable if accurate assessment of track structure parameters is to be achieved. Great strides have been made in the development of this database, understanding the underlying theory, and developing analytic models, particularly for interactions involving electrons and protons with atoms and molecules. The database is less comprehensive for interactions involving heavier charged particles, especially those that carry bound electrons, and for interactions in condensed phase media. Although there has been considerable progress in understanding the physical mechanisms for interactions involving fast heavy ions and atomic targets during the past few years, we still lack sufficient understanding to confidently predict cross-sections for these ions with biologically relevant material. In addition, little is known of the interaction cross-sections for heavy charged particles as they near the end of their track, i.e., for low velocity ions where collision theory is less well developed and where the particle's net charge fluctuates owing to electron capture and loss processes. This presentation focuses on the current status of ionization and charge-transfer data. Compilations, reviews, Internet sources, theoretical models, and recent data applicable to track structure calculations are discussed.

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Single-, Double- and Triple-Electron Capture Cross Sections for Multicharged Slow Carbon Ions in H₂, CH₄, C₂H₆, C₃H₈and CO₂Molecules

Cited by 19 publications

References 27 publications

Quantifying absolute carbon isotope ratios by AMS

Quantifying absolute carbon isotope ratios by AMS

Model potential treatment of C⁴⁺+ H₂collisions at low impact energies

Ionization and charge-transfer: basic data for track structure calculations

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Single-, Double- and Triple-Electron Capture Cross Sections for Multicharged Slow Carbon Ions in H2, CH4, C2H6, C3H8and CO2Molecules

Cited by 19 publications

References 27 publications

Quantifying absolute carbon isotope ratios by AMS

Quantifying absolute carbon isotope ratios by AMS

Model potential treatment of C4++ H2collisions at low impact energies

Ionization and charge-transfer: basic data for track structure calculations

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Single-, Double- and Triple-Electron Capture Cross Sections for Multicharged Slow Carbon Ions in H₂, CH₄, C₂H₆, C₃H₈and CO₂Molecules

Model potential treatment of C⁴⁺+ H₂collisions at low impact energies