Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	Microwave Cavities for Plasma Diagnostics [PDF]
AUTHORS	A. C. Raptis and K. E. Lonngren 1969 4 3 182-189
YEAR
VOLUME
ISSUE
PAGES
Abstract Standard devices used in plasma diagnostics are the microwave interferometer and microwave cavity. The cavities usually used are cylindrical resonators etc.), which present the problem that they "diagnose" a plasma over a relatively long section without taking into consideration local instabilities or fluctuations. In this paper, two types of small gap cavities are presented: namely, the spherical resonator and the reentrant cavity. Theoretical and experimental results are given and compared with those of a cylindrical resonator.