Author/Authors :
Yin، نويسنده , , H and Phelps، نويسنده , , A.D.R and He، نويسنده , , W and Robb، نويسنده , , G.R.M and Ronald، نويسنده , , K and Aitken، نويسنده , , P and McNeil، نويسنده , , B.W.J and Cross، نويسنده , , A.W and Whyte، نويسنده , , C.G، نويسنده ,
Abstract :
The pseudospark discharge offers the possibility of producing electron beams which are very attractive for use in high-power microwave generation. A pseudospark-based Cherenkov maser amplifier is currently under development at Strathclyde University. The electron beam source for this maser is a multi-gap pseudospark discharge. Preliminary results from recent Cherenkov maser experiments and a comparison with a numerical simulation are presented. A microwave pulse of 100 ns duration and approximately 10 kW peak power was generated by a 80 kV, 20 A beam passed through an alumina-lined waveguide when the interaction was allowed to start up from noise, which appeared to originate from the pseudospark discharge. Simulations agree well with the experimental results when a beam energy spread of 1.5% is assumed.
