Author/Authors :
Verhoeven، نويسنده , , A.G.A and Bongers، نويسنده , , W.A and Bratman، نويسنده , , V.L and Brons، نويسنده , , S and Denisov، نويسنده , , G.G. and van der Geer، نويسنده , , C.A.J and van der Geer، نويسنده , , S.B and Kruijt، نويسنده , , O.G and de Loos، نويسنده , , M.J and Manintveld، نويسنده , , P and Poelman، نويسنده , , A.J and Plomp، نويسنده , , J and Savilov، نويسنده , , A.V. and Smeets، نويسنده , , P.H.M and Urbanus، نويسنده , , W.H، نويسنده ,
Abstract :
Experiments have been performed with the free-electron maser (FEM) at Rijnhuizen, a high-power mm-wave source. A unique feature of the FEM is the possibility to tune the frequency over the entire range from 130 to 260 GHz at an output power exceeding 1 MW. In the so-called inverse set-up, where the electron gun is mounted inside the high-voltage terminal, a peak power of 730 kW was measured at 200 GHz and of 350 kW at 167 GHz [1,2]. Furthermore, we made the design work to extend the pulse-length to 1 s. Detailed thermal behavior of the critical components is studied. Both the cavity mirrors and the depressed-collector electrodes seem to have adequate cooling.
Keywords :
FEM , Thermal behavior of critical components , Free-electron maser , Mm-wave source , High-power-mm waves , Depressed collector
