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Ion collisions in very strong electric fields

Luca Salasnich et al 1996 J. Phys. B: At. Mol. Opt. Phys. 29 751-760   doi: 10.1088/0953-4075/29/4/017  Help

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Luca Salasnich-+++ and Fabio Sattin§
-+ Dipartimento di Fisica `Galileo Galilei' dell'Università di Padova, INFN, Sezione di Padova, Via Marzolo 8, I 35131 Padova, Italy
++ Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad `Complutense' de Madrid, Ciudad Universitaria, E 28040 Madrid, Spain
§ Dipartimento di Ingegneria Elettrica dell'Università di Padova, Via Gradenigo 6/a, I 35131 Padova, Italy

Abstract. A classical trajectory Monte Carlo (CTMC) simulation has been made of charge exchange and ionization processes between a hydrogen atom and fully stripped ions embedded in very strong static electric fields (of order of ), which are thought to exist in cosmic and laser-produced plasmas. Calculations show that the presence of the field affects absolute values of the cross sections, enhancing ionization and reducing charge exchange. Moreover, the overall effect depends upon the relative orientation between the field and the nuclear motion. Other features of a null-field situation, such as scaling laws, are revisited.

Print publication: Issue 4 (28 February 1996)
Received 4 September 1995, in final form 1 December 1995

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