Multi-ionization of H2O by Heavy Ion with Various Charge States
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Abstract
The time-dependent density functional theory （TDDFT） and local density approximation （LDA） are used to calculate the dipole moment changes, the ionization probabilities of the H20 molecule and the time-dependent probabilities of escaped electrons in the process of excitation of H2O molecule by C^＋ , C^2＋ with energy of 2.3 MeV/u. It is shown that the dipole moment changes of H2O are the greatest and the higher the charge staate of heavy ion, the bigger the probabilities of the high charge state of H2O molecule at maximal heavy ion potential. The dipole moment changes slightly when heavy ion leaved far from molecule.
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