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Determination of atomic cross-sections for electron impact excitation using effective Feynman diagrams and Einstein coefficients
Published online by Cambridge University Press: 09 March 2009
Abstract
An ‘effective Feynman diagram’ technique is introduced to obtain relations between the cross-sections of various atomic processes. In this paper the technique is used to obtain a simple relation between the cross-sections of electron impact excitation and resonant photon absorption. The method is important because calculations of complicated atomic wavefunctions are eliminated.
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- Copyright © Cambridge University Press 1983