Title :
The fusion-FEM: experiments in long pulse set-up
Author :
Bongers, W.A. ; Bratman, V.L. ; Denisov, G.G. ; van der Geer, C.A.J. ; Manintveld, P. ; Milittsyn, B. ; Oomens, A.A.M. ; Poelman, A.J. ; Pluygers, J. ; Riet, M. ; Savilov, A.V. ; Shmelyov, M.Yu. ; Smeets, P.H.M. ; Verhoeven, A.G.A. ; Urbanus, W.H.
Author_Institution :
FOM Inst. for Plasma Phys., Nieuwegein, Netherlands
Abstract :
The Free-Electron Maser (FEM) is a high power, wide band, 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. Presently, the 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.
Keywords :
free electron lasers; masers; millimetre wave generation; millimetre wave lasers; 130 to 260 GHz; 700 kW; beam line section losses; complete MM-wave beam line; decelerator; depressed collector; energy recovery system; fusion free-electron maser; high power wide band tunable MM-wave source; long-pulse operation; microsecond scale; pressure tank; quasi-optical beam transport; single-mode operation; total transmission line; Electron beams; Frequency measurement; Laser beams; Loss measurement; Mirrors; Optical reflection; Power transmission lines; Transmission line measurements; Transmission line theory; Wideband;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.892983
