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

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 fr...

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Bibliographic Details
Main Authors: Bongers, W.A., Bratman, V.L., Denisov, G.G., van der Geer, C.A.J., Manintveld, P., Militsyn, 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.
Format: Conference Proceeding
Language:English
Subjects:
Electron beams
Frequency measurement
Laser beams
Loss measurement
Mirrors
Optical reflection
Power transmission lines
Transmission line measurements
Transmission line theory
Wideband
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Summary: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.
DOI:10.1109/ICMMT.2000.895727