Electromagnetic radiation in the range 200 - 700 MHz was observed from an unmagnetized argon discharge. The radiation is attributed to standing surface waves spontaneously excited due to an unstable electron distribution. It is argued that, due to the finite length of the system, the electromagnetic radiation can be considered as if originating from a finite number of dipole antennas orientated along the discharge axis.
|Place of Publication||Roskilde, Denmark|
|Publisher||Risø National Laboratory|
|Number of pages||27|
|Publication status||Published - 1976|