Double ionization of helium in collision with 20-500-keV/amu Cq+ and Oq+ (q=1-3) ions
| Data(s) |
2009
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|---|---|
| Resumo |
Target ionization and projectile charge changing were investigated for 20-500 keV/u Cq+, Oq++He (q=1-3) collisions. Double- to single-ionization ratios R-21 of helium associated with no projectile charge change (direct ionization), single-electron capture, and single-electron loss were measured. The cross-section ratio R-21 depends strongly on the collision velocity v, the projectile charge state q, and the outgoing reaction channel. Meanwhile, a model extended from our previous work [J. X. Shao, X. M. Chen, and B. W. Ding, Phys. Rev. A 75, 012701 (2007)] is presented to interpret the above-mentioned dependences. Good agreement is found between the model and the experimental data. China National Science Foundation 10804039 |
| Identificador | |
| Idioma(s) |
英语 |
| Fonte |
Zou, XR (Zou, X. R.); Shao, JX (Shao, J. X.); Chen, XM (Chen, X. M.); Cui, Y (Cui, Y.); Gao, ZM (Gao, Z. M.); Yin, YZ (Yin, Y. Z.); Ding, BW (Ding, B. W.); Li, Z (Li, Z.); Yu, DY (Yu, D. Y.) .Double ionization of helium in collision with 20-500-keV/amu Cq+ and Oq+ (q=1-3) ions,PHYSICAL REVIEW A ,2009,80(5):052701 |
| Palavras-Chave | #atom-ion collisions #carbon #electron capture #helium neutral atoms #ionisation #oxygen #positive ions |
| Tipo |
期刊论文 |
