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Engineering educational research section Science Center for Engineering Education |
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IGARASHI Akinori
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Research Areas 【 display / non-display 】
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Natural Science / Semiconductors, optical properties of condensed matter and atomic physics / 原子分子物理
Papers 【 display / non-display 】
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Calculation of Cross Sections for H-H Collision Using the Close-Coupling Method Reviewed
Igarashi A.
Few Body Systems 67 ( 1 ) 2026.3
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal) Publisher：Few Body Systems
We have treated the collision between two hydrogen atoms in the ground states using atomic-orbital close-coupling calculations within the impact parameter method. The cross sections for projectile excitation to 2s and 2p, H- formation in the projectile, and projectile ionization are calculated with a larger basis set than previous calculations in the energy range of 1 to 30 keV. The excitation results do not agree with experimental data. The H- formation results agree well with experimental data, and the ionization results are also acceptable.
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Electron capture cross-sections in Ne10+ + H(1 s) and Ne10+ + H(2 s) collisions Reviewed
Igarashi A., Oishi T., Murakami I., Nishizawa T., Kato D.
Plasma Physics and Controlled Fusion 67 ( 10 ) 2025.10
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal) Publisher：Plasma Physics and Controlled Fusion
An atomic-orbital close-coupling method is applied to Ne<sup>10+</sup>–H(1 s) and Ne<sup>10+</sup>–H(2 s) collisions to calculate the total electron capture cross-section, state-selective electron capture cross-section, and total ionization cross-section. Results are shown from 1 to 50keV u<sup>−1</sup> for the H(1s) target and from 1 to 25keV u<sup>−1</sup> for the H(2s) target. The present results for the H(1s) target are overall in good agreement with other theoretical results. The results for the H(2s) target are less reliable, but may be useful for future studies.
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Cross Section Calculation of H-He Collisions using Three-Electron Close-Coupling Method Reviewed
Akinori and Daiji Kato
Few-body systems 66 3 2024.12
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Cross sections in He+ +He collision at intermediate energies Reviewed
A. Igarashi and D. Kato
Eur. Phys. J. D 78 79 2024.6
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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Two-center and path interference in dissociative capture in p+ H2 collisions Reviewed International coauthorship
S. Bastola, M. Dhital, B. Lamichhane, A. Silvus,R. Lomsadze, A. Hasan, A. Igarashi, and M. Schulz
Physical Review A 109 012821 2024.1
Language：English Publishing type：Research paper (scientific journal)
Presentations 【 display / non-display 】
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多価イオンの状態選別荷電交換断面積計算
五十嵐明則
原子衝突学会 第48 回年会 2023.11.25
Event date： 2023.11.25 - 2023.11.26
Presentation type：Oral presentation (general)
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緊密結合法によるHe+-He衝突の断面積計算
五十嵐明則
原子衝突学会第48 回年会 2023.11.25
Event date： 2023.11.25 - 2023.11.26
Presentation type：Oral presentation (general)
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陽子・ヘリウム衝突における入射体散乱方向微分断面積
五十嵐 明則
原子衝突学会第46 回年会 2021.10.26
Event date： 2021.10.26 - 2021.10.27
Language：Japanese Presentation type：Oral presentation (general)
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イオン衝突による水素分子の電離微分断面積
田上智基, 五十嵐明則、大崎明彦
第１２２回日本物理学会九州支部例会 (福岡大学) 日本物理学会九州支部
Event date： 2016.12.10
Language：Japanese Presentation type：Oral presentation (general)
Venue：福岡大学
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水素分子の２電子励起状態の計算
細見昌弘, 五十嵐明則、大崎明彦
第１２２回日本物理学会九州支部例会 (福岡大学) 日本物理学会九州支部
Event date： 2016.12.10
Language：Japanese Presentation type：Oral presentation (general)
Venue：福岡大学
