SURVEY OF EXPERIMENTS ON PARAMETRIC INSTABILITIES AND ANOMALOUS ABSORPTION [report]

M. Porkolab
1972 unpublished
In rf heating experiments the possibility of p·arametric instabilities must be recognized. 'J'he experimental evidence for the occurrence of parametric instabilities and associated anomalous absorption and/or heating will be surveyed. The experiments performed in the past few years can be divided according to geometry as follows: (1) Excitation by grids (including probes and capacitor plates). (2) Cavity excitation. (3) Microwave irradiation from waveguides. The advantages and disadvantages of
more » ... hese techniques will be compared by discussing specific laboratory experiments. The evidence of anomalous absorptio.n and heating, as being due to parametric instabilities, will be discussed.
doi:10.2172/4547745 fatcat:nuj3dh5c4jaivpl2ow7byfhhbm