Experimental and numerical results on a millimeter-wave free electron laser amplifier

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Title: Experimental and numerical results on a millimeter-wave free electron laser amplifier
Author: Granatstein, V.L.; Destler, William; Bidwell, S.W.; Zhang, Z.X.; Antonsen, T.M. Jr.; Levush, B.; Rodgers, J.; Carmel, Y.; Freund, H.P.
Abstract: Progress in studies of a millimeter-wave free electron laser amplifier based on a small period planar wiggler and a sheet electron beam is reported. Successful propagation of a 15 A sheet electron beam has been accomplished through a 56-period wiggler magnet (Bw = 5.1 kG, λw = 9.6 mm); this was made possible in part by employing a novel method of edge focusing using offset pole pieces. Status of a 94 GHz pulsed amplifier experiment is discussed. Design parameters are presented for a 150 GHz, 5 MW cw amplifier with peak rf wall heating not, vert, similar1 kW/cm2; such an amplifier may be relevant to plasma heating in future magnetic fusion experimental reactors.
Record URI: http://hdl.handle.net/1850/9705
Publishers URL: http://dx.doi.org/10.1016/0168-9002(93)90027-F
Date: 1993-07

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