Original scientific paper
Charge signature on ionization-excitation of He by fast projectiles
Sujata Bhattacharyya
; Gokhale Memorial Girls’ College, Calcutta–700 020, India
Abstract
An analytical expression for the differential cross-section for ionization-excitation of He to He+(np) states by high energy charged particles is formulated. The ratio of the differential cross-section by a negative projectile and of the differential cross-section by an equivelocity positive projectile is found to be greater than one when the energy of the ejected electron is less than half the ground state energy of He atom.
Keywords
Hrčak ID:
299437
URI
Publication date:
1.3.1995.
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