| Numéro |
J. Phys. Colloques
Volume 50, Numéro C1, Janvier 1989
International Conference on the Physics of Multiply Charged Ions and International Workshop on E.C.R. Ion Sources
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|---|---|---|
| Page(s) | C1-93 - C1-97 | |
| DOI | https://doi.org/10.1051/jphyscol:1989109 | |
International Conference on the Physics of Multiply Charged Ions and International Workshop on E.C.R. Ion Sources
J. Phys. Colloques 50 (1989) C1-93-C1-97
DOI: 10.1051/jphyscol:1989109
1 Physics Department, J.R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506, U.S.A.
2 Physics Department, Florida A and M University, Talhassee, FL 32307, U.S.A.
3 Hahn-Meitner-Institute, D-1000 Berlin 39, F.R.G.
J. Phys. Colloques 50 (1989) C1-93-C1-97
DOI: 10.1051/jphyscol:1989109
TWO-ELECTRON PROCESSES IN He2+ + He COLLISIONS AT INTERMEDIATE IMPACT ENERGIES
C.D. LIN1, R. SHINGAL1, ASHOK JAIN2 and W. FRITSCH31 Physics Department, J.R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506, U.S.A.
2 Physics Department, Florida A and M University, Talhassee, FL 32307, U.S.A.
3 Hahn-Meitner-Institute, D-1000 Berlin 39, F.R.G.
Abstract
Two electron processes in He2+ +He collisions are investigated theoretically within the independent electron approximation. The transition probabilities for double capture, transfer ionization and double ionization processes are expressed in terms of products of single electron transition probabilities which are calculated using the atomic orbital expansion method (AO). The effect of relaxation due to the change of screening in the second electron is examined by using a different effective charge in the calculation of single electron transition probabilties for the second electron. The role of electron correlation is partially explored for the double electron capture process by performing a two-electron version of the AO+ code.