Double- and single-electron transfer in H{sup +}+K collisions from 0.3 to 4keV: Separation of direct double transfer and two-step successive single-electron transfer
Abstract
Double-electron transfer and two-step single-electron transfer in collisions of proton with potassium-metal target are measured in the collision energy from 0.3 to 4 keV by using a charge-inversion mass spectrometry. Two prominent H{sup -} ion peaks are observed with different values of the energy loss and show different target density dependences. The peak with larger energy loss is identified as double-electron transfer and the other as two-step successive single-electron transfer from the analysis of the target density dependence. The two-step single-electron transfer is considered to occur as the process accompanying spontaneous Ly-{alpha} emission, followed by negative H{sup -} formation. A theoretical analysis is also carried out, and the single-electron transfer cross section obtained is found to be in excellent agreement with the present measurement, while the present measurement for double-electron transfer is found to be much smaller than those evaluated earlier and the present theory.
- Authors:
-
- College of Integrated Arts and Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Sakai, Osaka, 599-8531 (Japan)
- Publication Date:
- OSTI Identifier:
- 20645898
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. A
- Additional Journal Information:
- Journal Volume: 70; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.70.022708; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; CHARGE EXCHANGE; CROSS SECTIONS; DENSITY; ELECTRON TRANSFER; EMISSION; ENERGY LOSSES; HYDROGEN IONS 1 MINUS; HYDROGEN IONS 1 PLUS; ION-ATOM COLLISIONS; KEV RANGE; MASS SPECTRA; MASS SPECTROSCOPY; POTASSIUM; PROTONS
Citation Formats
Hayakawa, Shigeo, Kadomura, Kazunori, Kimura, Mineo, Dutta, C M, Graduate School of Sciences, Kyushu University, Hakozaki, Fukuoka 812-8581, and Department of Physics, Rice University, Houston, Texas 77501. Double- and single-electron transfer in H{sup +}+K collisions from 0.3 to 4keV: Separation of direct double transfer and two-step successive single-electron transfer. United States: N. p., 2004.
Web. doi:10.1103/PhysRevA.70.022708.
Hayakawa, Shigeo, Kadomura, Kazunori, Kimura, Mineo, Dutta, C M, Graduate School of Sciences, Kyushu University, Hakozaki, Fukuoka 812-8581, & Department of Physics, Rice University, Houston, Texas 77501. Double- and single-electron transfer in H{sup +}+K collisions from 0.3 to 4keV: Separation of direct double transfer and two-step successive single-electron transfer. United States. https://doi.org/10.1103/PhysRevA.70.022708
Hayakawa, Shigeo, Kadomura, Kazunori, Kimura, Mineo, Dutta, C M, Graduate School of Sciences, Kyushu University, Hakozaki, Fukuoka 812-8581, and Department of Physics, Rice University, Houston, Texas 77501. 2004.
"Double- and single-electron transfer in H{sup +}+K collisions from 0.3 to 4keV: Separation of direct double transfer and two-step successive single-electron transfer". United States. https://doi.org/10.1103/PhysRevA.70.022708.
@article{osti_20645898,
title = {Double- and single-electron transfer in H{sup +}+K collisions from 0.3 to 4keV: Separation of direct double transfer and two-step successive single-electron transfer},
author = {Hayakawa, Shigeo and Kadomura, Kazunori and Kimura, Mineo and Dutta, C M and Graduate School of Sciences, Kyushu University, Hakozaki, Fukuoka 812-8581 and Department of Physics, Rice University, Houston, Texas 77501},
abstractNote = {Double-electron transfer and two-step single-electron transfer in collisions of proton with potassium-metal target are measured in the collision energy from 0.3 to 4 keV by using a charge-inversion mass spectrometry. Two prominent H{sup -} ion peaks are observed with different values of the energy loss and show different target density dependences. The peak with larger energy loss is identified as double-electron transfer and the other as two-step successive single-electron transfer from the analysis of the target density dependence. The two-step single-electron transfer is considered to occur as the process accompanying spontaneous Ly-{alpha} emission, followed by negative H{sup -} formation. A theoretical analysis is also carried out, and the single-electron transfer cross section obtained is found to be in excellent agreement with the present measurement, while the present measurement for double-electron transfer is found to be much smaller than those evaluated earlier and the present theory.},
doi = {10.1103/PhysRevA.70.022708},
url = {https://www.osti.gov/biblio/20645898},
journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 70,
place = {United States},
year = {Sun Aug 01 00:00:00 EDT 2004},
month = {Sun Aug 01 00:00:00 EDT 2004}
}