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Inelastic energy loss of H[sub 2][sup +] and H[sub 3][sup +] ions correlated with molecular orientation

Journal Article · · Physical Review A; (United States)
 [1]
  1. Department of Applied Physics, Okayama University of Science, 1-1 Ridaicho, Okayama 700 (Japan)
Electronic stopping power of aluminum, carbon, and krypton were calculated for energetic H[sub 2][sup +] and H[sub 3][sup +] ions together with a diproton (2H[sup +]) and a triproton (3H[sup +]) with specific energies ranging from 1 keV/amu to 10 MeV/amu in a frozen charge state, based on the degenerate electron-gas model and the wave-packet model. It was found that for H[sub 2][sup +] and 2H[sup +] ions a strong orientation effect can be theoretically predicted on the stopping power [ital S] and the effective charge [ital Z][sub eff]. It was also clarified that the bound electrons significantly diminish the values of [ital S] and [ital Z][sub eff], and that the velocity dependence of [ital Z][sub eff] is considerably weaker than that expected from the existing data. The values of [ital S] and [ital Z][sub eff] calculated for [similar to]10 MeV/amu H[sub 2][sup +] ion incident on carbon foils are found to be in good agreement with the recent experimental data.
OSTI ID:
6713075
Journal Information:
Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:1; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English