Molecular effects in M-shell ionization by slow light ions

M. Pajek, D. Banaś, L. Jabłoński, T. Mukoyama

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Synopsis The studies of M-shell ionization, or M-X-ray emission, by slow light ions indicate rather strong, up to a factor of 3-5, underestimation of the measured cross sections by the available theoretical calculations describing direct Coulomb ionization by charged particle impact. Guided by our earlier systematic measurements of M-shell ionization cross sections by 1,2H and 3,4He ions we demonstrate here that for the low energy ions, i.e. in the adiabatic regime, the electron binding energy does not saturates at the united atoms (UA) limit, commonly used in the calculations, but instead it has a smaller value corresponding to a transient molecule (MO) formed in collision. This effect, when described in the one-electron molecule approximation, can explain the observed discrepancies between the measured and calculated M-shell ionization cross sections.

Original languageEnglish
Article number092022
JournalJournal of Physics: Conference Series
Volume875
Issue number10
DOIs
Publication statusPublished - Aug 18 2017
Event30th International Conference on Photonic, Electronic, and Atomic Collisions, ICPEAC 2017 - Cairns, Australia
Duration: Jul 26 2017Aug 1 2017

Fingerprint

light ions
ionization cross sections
ionization
molecules
charged particles
ions
electrons
binding energy
collisions
cross sections
approximation
atoms
x rays
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Molecular effects in M-shell ionization by slow light ions. / Pajek, M.; Banaś, D.; Jabłoński, L.; Mukoyama, T.

In: Journal of Physics: Conference Series, Vol. 875, No. 10, 092022, 18.08.2017.

Research output: Contribution to journalConference article

Pajek, M. ; Banaś, D. ; Jabłoński, L. ; Mukoyama, T. / Molecular effects in M-shell ionization by slow light ions. In: Journal of Physics: Conference Series. 2017 ; Vol. 875, No. 10.
@article{51df4b80599643bcba78878b293117e1,
title = "Molecular effects in M-shell ionization by slow light ions",
abstract = "Synopsis The studies of M-shell ionization, or M-X-ray emission, by slow light ions indicate rather strong, up to a factor of 3-5, underestimation of the measured cross sections by the available theoretical calculations describing direct Coulomb ionization by charged particle impact. Guided by our earlier systematic measurements of M-shell ionization cross sections by 1,2H and 3,4He ions we demonstrate here that for the low energy ions, i.e. in the adiabatic regime, the electron binding energy does not saturates at the united atoms (UA) limit, commonly used in the calculations, but instead it has a smaller value corresponding to a transient molecule (MO) formed in collision. This effect, when described in the one-electron molecule approximation, can explain the observed discrepancies between the measured and calculated M-shell ionization cross sections.",
author = "M. Pajek and D. Banaś and L. Jabłoński and T. Mukoyama",
year = "2017",
month = "8",
day = "18",
doi = "10.1088/1742-6596/875/10/092022",
language = "English",
volume = "875",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "10",

}

TY - JOUR

T1 - Molecular effects in M-shell ionization by slow light ions

AU - Pajek, M.

AU - Banaś, D.

AU - Jabłoński, L.

AU - Mukoyama, T.

PY - 2017/8/18

Y1 - 2017/8/18

N2 - Synopsis The studies of M-shell ionization, or M-X-ray emission, by slow light ions indicate rather strong, up to a factor of 3-5, underestimation of the measured cross sections by the available theoretical calculations describing direct Coulomb ionization by charged particle impact. Guided by our earlier systematic measurements of M-shell ionization cross sections by 1,2H and 3,4He ions we demonstrate here that for the low energy ions, i.e. in the adiabatic regime, the electron binding energy does not saturates at the united atoms (UA) limit, commonly used in the calculations, but instead it has a smaller value corresponding to a transient molecule (MO) formed in collision. This effect, when described in the one-electron molecule approximation, can explain the observed discrepancies between the measured and calculated M-shell ionization cross sections.

AB - Synopsis The studies of M-shell ionization, or M-X-ray emission, by slow light ions indicate rather strong, up to a factor of 3-5, underestimation of the measured cross sections by the available theoretical calculations describing direct Coulomb ionization by charged particle impact. Guided by our earlier systematic measurements of M-shell ionization cross sections by 1,2H and 3,4He ions we demonstrate here that for the low energy ions, i.e. in the adiabatic regime, the electron binding energy does not saturates at the united atoms (UA) limit, commonly used in the calculations, but instead it has a smaller value corresponding to a transient molecule (MO) formed in collision. This effect, when described in the one-electron molecule approximation, can explain the observed discrepancies between the measured and calculated M-shell ionization cross sections.

UR - http://www.scopus.com/inward/record.url?scp=85041373477&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041373477&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/875/10/092022

DO - 10.1088/1742-6596/875/10/092022

M3 - Conference article

VL - 875

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 10

M1 - 092022

ER -