A study on the collision of hydrogen ions H1+, H2+and H3+with a water-vapour target

Dagnac, R; Blanc, D.; Molina, Diego Alonso Restrepo

doi:10.1088/0022-3700/3/9/007

Cited by 72 publications

(47 citation statements)

References 16 publications

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“…Thus, with regard to the great importance of this kind of studies in radiobiology, where the description of the primary interaction between ionizing particles and biomolecules like nucleobases is essential, we really hope that experimental data on these biological systems will be soon available. [4] (solid down triangles), Gobet et al [25] (solid squares), Toburen [7] (solid circles), Date et al [22] (solid up triangles) and theoretical results taken from Errea dotted line). Panel c): Multiple processes: theoretical predictions taken from Errea et al [13] (dashed line) for the CI process and Gervais et al [14] for the DI process (stars and dotted line).…”

Section: Resultsmentioning

confidence: 99%

“…We can at first mention the work of Dagnac et al [4] where total cross section measurements have been reported for SI and SC induced by protons with impact energies ranging from 2 to 60keV. Later on, Rudd et al [5] have published SI and SC total cross sections for 7-4000keV protons whereas Bolorizadeh and Rudd [6] reported doubly differential (differential in energy and angular transfers) and total SI cross sections for proton energies ranging from 15 to 150keV.…”

Section: Introductionmentioning

confidence: 99%

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Total cross sections for ionizing processes induced by proton impact on molecules of biological interest: A classical trajectory Monte Carlo approach

Lekadir

Abbas

Champion

et al. 2009

Nuclear Instruments and Methods in Physics Research Section B:

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In the current work, we present a study of ionizing interactions between protons and molecular targets of biological interest like water vapour and DNA bases. Total cross sections for single and multiple ionizing processes are calculated in the Independent Electron Model and compared to existing theoretical and experimental results for impact energies ranging from 10keV/amu to 10MeV/amu. The theoretical approach combines some characteristics of the Classical Trajectory Monte Carlo method with the Classical Over-Barrier framework. In this "mixed" approach, all the particles are described in a classical way by assuming that the target electrons are involved in the collision only when their binding energy is greater than the maximum of the potential energy of the system {projectile-target}. We test our theoretical approach on the water molecule and the obtained results are compared to a large set of data and a reasonable agreement is generally observed specially for impact energies greater than 100keV, excepted for the double ionization process for which large discrepancies are reported. Considering the DNA bases, the obtained results are given without any comparison since the literature is till now very poor in terms of cross section measurements.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Total cross sections for ionizing processes induced by proton impact on molecules of biological interest: A classical trajectory Monte Carlo approach

Lekadir

Abbas

Champion

et al. 2009

Nuclear Instruments and Methods in Physics Research Section B:

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show abstract

“…Equation (13) is solved along each projectile trajectory R(t) and each initial condition that assumes that the active electron is initially in one of the valence MOs of the target molecule (e.g., for water): a j (t = 0) = δ ij , with j = 2,3,4,5 representing 2a 1 , 1b 2 , 3a 1 , and 1b 1 MOs, respectively. The one-electron transition probability from φ j to φ i along a given trajectory is…”

Section: B Methods I (Mi)mentioning

confidence: 99%

“…Collisions between ions and molecules are relevant processes in cold plasmas, which have motivated a large amount of experimental [1][2][3][4][5][6][7] and theoretical [8][9][10][11][12] works.…”

Section: Introductionmentioning

confidence: 99%

Ab initiotreatment of charge transfer in ion-molecule collisions based on one-electron wave functions

et al. 2012

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Two simple ab initio methods based on one-electron wave functions are employed to calculate the singleelectron capture and single ionization of H 2 O and CO molecules by ion impact. The anisotropy of the molecular targets is taken into account by using multicenter pseudopotentials to represent the interaction of the active electron with the ionic molecular core. These two methods are applied to the study of three collisional systems: H + + H 2 O, He 2+ + H 2 O, and C 2+ + CO. Comparison with experiments and other theoretical works is presented when available.

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“…Experimental data: ionization and capture induced by proton impact (red squares, stars and circles [11][12][13], and magenta triangles, squares and circles [14][15][16], respectively) and hydrogen-induced ionization (blue circles [17]). …”

Section: H + Processesmentioning

confidence: 99%

Proton track structure code in biological matter

Quinto

Monti

Galassi

et al. 2015

J. Phys.: Conf. Ser.

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A study on the collision of hydrogen ions H₁⁺, H₂⁺and H₃⁺with a water-vapour target

Cited by 72 publications

References 16 publications

Total cross sections for ionizing processes induced by proton impact on molecules of biological interest: A classical trajectory Monte Carlo approach

Total cross sections for ionizing processes induced by proton impact on molecules of biological interest: A classical trajectory Monte Carlo approach

Ab initiotreatment of charge transfer in ion-molecule collisions based on one-electron wave functions

Proton track structure code in biological matter

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