Abstract
Charged particles interact according to the Coulomb force law, according to which the interaction strength diminishes slowly with distance. Charged particles, moving in a plasma, constantly interact with other charged particles via this long-range force. For this reason the path of a particle is not a broken one (with discontinuous derivatives) as is the case with neutral particles, but a smooth curve (Fig. 43). However, a detailed analysis shows that thermal motion and transport processes can still be described in terms of a collision theory by introducing the concept of Coulomb collisions. This means that the actual curved path of the particles can be replaced by a series of broken lines (the dashed line in Fig. 43). Each time the direction of a particle changes by approximately 90° as a result of continuous interactions we say that the particle has experienced a Coulomb collision; this corresponds to a change in direction in the dashed line.
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Copyright information
© 1972 Plenum Press, New York
About this chapter
Cite this chapter
Frank-Kamenetskii, D.A. (1972). Coulomb Collisions. In: Plasma. Palgrave, London. https://doi.org/10.1007/978-1-349-01552-8_48
Download citation
DOI: https://doi.org/10.1007/978-1-349-01552-8_48
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-01554-2
Online ISBN: 978-1-349-01552-8
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)