Measurement of the density of a magnetized plasma column using a resonant cavity technique
In certain circumstances the resonant cavity technique may be better suited for absolute density measurements in a magnetised plasma than Langmuir probes with microwave interferometer calibration. The feasibility of this method was therefore investigated. Density measurements were obtained for an axial magnetised argon discharge, with mode m=6 corresponding to resonant frequencies in the vicinity of 8 GHz. The value of the line-averaged density, corrected for the effects of both the non-uniform density profile and the fringing fields, was plotted as a function of the discharge current. It was shown to be in good agreement with values obtained using a microwave interferometer.
Bibliographic Reference: Paper presented: XIX International Conference on Phenomena in Ionized Gases, Belgrade (YU), July 10-14, 1989
Availability: Available from (1) as Paper EN 34606 ORA
Record Number: 198911080 / Last updated on: 1994-12-01
Original language: en
Available languages: en