Excitation cross sections for Li3 +, Ne10 +and Ar18 ++H(1s) collisions of interest in fusion plasma diagnostics

Suárez, Jaime; Guzmán, F.; Pons, B.; Errea, L. F.

doi:10.1088/0953-4075/46/9/095701

Cited by 10 publications

(31 citation statements)

References 52 publications

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“…The work by Agueny et al [19] was based on the two-center atomic orbital close-coupling method with Gaussian-type orbitals (TC-AOCC-GTO). Only excitation of the n = 2 and n = 3 shells are presented, since transition to higher energy states are not important at these impact energies [18]. It is shown that the present TC-BGM results are in satisfactory agreement with previously reported cross sections [18,19].…”

Section: Resultssupporting

confidence: 86%

“…Only excitation of the n = 2 and n = 3 shells are presented, since transition to higher energy states are not important at these impact energies [18]. It is shown that the present TC-BGM results are in satisfactory agreement with previously reported cross sections [18,19].…”

Section: Resultssupporting

confidence: 86%

“…1a), the present TC-BGM results are compared with other calculations. The work by Suarez et al [18] reported recommended excitation cross sections based on the two-center one-electron diatomic molecule expansion covering 1 to 80 keV/u and the one-center Bessel expansion that covers energies greater than 80 keV/u. The work by Agueny et al [19] was based on the two-center atomic orbital close-coupling method with Gaussian-type orbitals (TC-AOCC-GTO).…”

Section: Resultsmentioning

confidence: 99%

“…Recommended data from Ref. [18]. Theory: present TC-BGM, TC-AOCC-GTO [19,20], and Advanced Adiabatic [21].…”

Section: Resultsmentioning

confidence: 99%

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Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Leung,

Kirchner

2021

Preprint

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The two-center basis generator method is used to obtain cross sections for excitation, capture, and ionization in Li 3+ , C 3+ , and O 3+ collisions with ground-state hydrogen at projectile energies from 1 to 100 keV/u. The interaction of the C 3+ and O 3+ projectiles with the active electron is represented by a model potential. Comparisons of cross sections with previously reported data show overall good agreement while discrepancies in capture for C 3+ collisions at low energies are noted.The present results show that excitation and ionization are similar across the three collision systems, which indicates that these cross sections are mostly dependent on the net charge of the projectile only.The situation is different for the capture channel. I. INTRODUCTIONCollisions between partially-stripped ions and neutrals (atoms or molecules) are more commonly found in nature than collisions with bare ions. Partially-stripped ion collisions have been a subject of interest in astrophysical [1, 2] and plasma applications [3], and thus, interest in accurate cross sections for electronic processes in these collisions remains high. In recent times, the International Nuclear Data Committee within the International Atomic Energy Agency has expressed interest in cross sections from collisions between bare or partially-stripped projectiles with atomic hydrogen, which are necessary for neutral beam modeling in fusion plasma [4].In this study, new calculated cross sections for collision systems involving ground-state hydrogen and ions of net charge Q = 3 are reported. Specifically, the projectile ions Li 3+ , C 3+ and O 3+ are chosen for this analysis. Cross sections for electron excitation, capture, and ionization are compared with data that are available in the literature. Currently, there is a broad coverage of cross sections for Li 3+ -H(1s) collisions from the low to the high energy regimes (e.g., ). Although data exist for C 3+ and O 3+ collisions with atomic hydrogen [8-10], there are some gaps for excitation and ionization data in the intermediate energy regime. Therefore, the objectives of this study are to report cross sections in these gaps, perform validity checks on existing ones, and provide a comparison for the three ions to throw light on the question to which extent the net charge alone determines the cross sections.The approach used in the present theoretical analysis is the semiclassical, nonperturbative

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Section: Resultssupporting

confidence: 86%

Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

“…Recommended data from Ref. [18]. Theory: present TC-BGM, TC-AOCC-GTO [19,20], and Advanced Adiabatic [21].…”

Section: Resultsmentioning

confidence: 99%

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Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Leung,

Kirchner

2021

Preprint

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“…In particular, the use of improved initial distributions has allowed to evaluate state selective CX cross sections for several systems [30][31][32][33], which have been merged with semiclassical calculations to provide sets of recommended data. This method has been recently applied to calculate excitation cross sections in [34]. The CTMC method has also been applied to study collisions with excited atoms (e.g.…”

Section: +mentioning

confidence: 99%

Calculation of ionization and total and partial charge exchange cross sections for collisions of C6+ and N7+ with H

et al. 2014

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Calculation of Ionization, Excitation and Electron Capture Cross Sections for Be⁴⁺+H(2s, 2p) Collisions

Illescas

2023

ChemPhysChem

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A computational study of Be4++H(2s, 2p) collisions has been carried out employing the Classical Trajectory Monte Carlo (CTMC) method for the impact energy range from 20 keV/u to 1000 keV/u. The integral n partial cross sections for H(n) excitation and Be3+(n) electron capture and, the total ionization and electron capture cross sections are calculated and compared to recent semiclassical results. A general good agreement is observed for the n partial and total electron capture and ionization cross sections. The comparative study of the three inelastic processes show no significant differences between both excited targets.

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Excitation cross sections for Li^{3 +}, Ne^{10 +}and Ar^{18 +}+H(1s) collisions of interest in fusion plasma diagnostics

Cited by 10 publications

References 52 publications

Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Calculation of ionization and total and partial charge exchange cross sections for collisions of C6+ and N7+ with H

Calculation of Ionization, Excitation and Electron Capture Cross Sections for Be⁴⁺+H(2s, 2p) Collisions

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Excitation cross sections for Li3 +, Ne10 +and Ar18 ++H(1s) collisions of interest in fusion plasma diagnostics

Cited by 10 publications

References 52 publications

Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

Calculation of ionization and total and partial charge exchange cross sections for collisions of C6+ and N7+ with H

Calculation of Ionization, Excitation and Electron Capture Cross Sections for Be4++H(2s, 2p) Collisions

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Excitation cross sections for Li^{3 +}, Ne^{10 +}and Ar^{18 +}+H(1s) collisions of interest in fusion plasma diagnostics

Calculation of Ionization, Excitation and Electron Capture Cross Sections for Be⁴⁺+H(2s, 2p) Collisions