Author/Authors :
Caplan، نويسنده , , M and Bongers، نويسنده , , W.A and Verhoeven، نويسنده , , A.G.A and Geer، نويسنده , , C.A.J.van der and Valentini، نويسنده , , M and Urbanus، نويسنده , , W.H، نويسنده ,
Abstract :
The Free Electron Maser (FEM) constructed at the FOM Institute, Netherlands is now ready to undergo the first set of short pulse (<20 μs) experiments to demonstrate the capability of generating 1 MW of microwave power in the range 130–250 GHz. Predictions of the FEM performance requires a time-dependent multi-frequency simulation code which can include the detailed frequency dependence of the measured microwave transmission and feedback system, the time-dependent voltage pulse and the initial shot noise in the electron beam. Simulations predict that in spite of imperfections in the microwave circuit, transmission losses and a substantial voltage droop of 0.34% per μs, megawatt levels of microwave power will be generated and observed within the 10–20 μs voltage pulse.
