Accession Number : AD0459467

Title :   THE EFFECT OF COLLISION ON THE GROUP REFRACTIVE INDEX OF THE IONOSPHERE.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s) : Pisacane, V. L. ; Stuart, J. D.

Report Date : JAN 1965

Pagination or Media Count : 15

Abstract : An expression from which the group index of refraction may be calculated when the collision frequency is small but not negligible is discussed. Various approximations are made to this expression for special cases: the quasilongitudinal, quasi-transverse, pure longitudinal, pure transverse, and field free propagation. When the collisions are neglected, then approximations reduce to well known formulae. A Maclaurin series expansion shows that the group index of refraction is independent of the first power of the collision frequency. (Author)

Descriptors :   (*REFRACTIVE INDEX, IONOSPHERE), (*IONOSPHERE, REFRACTIVE INDEX), NUMERICAL ANALYSIS, MAGNETIC FIELDS, SERIES(MATHEMATICS), PROPAGATION, ELECTRONS, THEORY, EQUATIONS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE