The fusion-FEM: experiments in long pulse set-up

W A Bongers,V L Bratman,G G Denisov,C A J Van Der Geer,P Manintveld,B L Militsyn,A A M Oomens,A J Poelman,J Pluygers, M Riet,A V Savilov,M Yu Shmelyov,P H M Smeets,A G A Verhoeven,W H Urbanus

Beijing（2000）

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Abstract

The Free-Electron Maser (FEM) is a high power, wideband, tunable mm-wave source in the range of 130-260 GHz for fusion applications. Without electron beam recovery, the fusion-FEM has generated over 700 kW at 200 GHz in the microsecond scale. Single-mode operation has been demonstrated at various frequencies. A fusion FEM has been completed for long-pulse operation; the energy recovery system, a decelerator and a depressed collector have been installed. in this paper we present results on measurements of the complete mm-wave beam line for long-pulse operation

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Key words

free electron lasers,masers,millimetre wave generation,130 to 260 ghz,700 kw,decelerator,depressed collector,energy recovery system,free-electron maser,fusion-fem,long pulse set-up,mm-wave beam line,single-mode operation,tunable mm-wave source,electron beam,energy recovery,single mode

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