Ray inverse scattering problem for cylindrical plasma with glass wall
Abstract
The problem of the calculation of the electron density profile in a cylindrical lossless plasma with a glass wall from narrowbeam (microwave) refraction data at variable impact parameters and fixed frequency, under conditions where geometrical optics applies, is discussed. It is assumed that the electron density is, in general, slowly varying. It is pointed out, however, that it need not be a monotonically decreasing function of r in order for the formal inversion procedure to work. The case of a discontinuous density (sharp plasma boundary) is treated in detail, and it is shown that in spite of the total reflection from the boundary which occurs for certain range of impact parameters, the (in principle) experimentally accessible information is sufficient to furnish a unique solution to the problem.
 Publication:

Plasma Physics
 Pub Date:
 January 1976
 DOI:
 10.1088/00321028/18/1/006
 Bibcode:
 1976PlPh...18...67C
 Keywords:

 Electron Density Profiles;
 Microwave Plasma Probes;
 Monotone Functions;
 Plasma Cylinders;
 Ray Tracing;
 Refractivity;
 Deflection;
 Microwave Scattering;
 Numerical Integration;
 Plasma Frequencies;
 Plasma Loss;
 PlasmaElectromagnetic Interaction;
 Plasma Physics