Title :
The Dutch free-electron maser: 730 kW, 200 GHz
Author :
Urbanus, W.H. ; Bongers, W.A. ; Bratman, V.L. ; Caplan, M. ; Denisov, G.G. ; van der Geer, C.A.J. ; Manintveld, P. ; Plomp, J. ; Pluygers, J. ; Poelman, A.J. ; Savilov, A.V. ; Smeets, P.H.M. ; Schuller, F.C. ; Varfolomeev, A.A. ; Verhoeven, A.G.A.
Author_Institution :
Assoc. EURATOM, FOM Inst. for Plasma Phys., Nieuwegein, Netherlands
fDate :
6/20/1905 12:00:00 AM
Abstract :
At the FOM Institute for Plasma Physics “Rijnhuizen”, The Netherlands, an electrostatic high power free-electron maser is operated at various frequencies. An output power of 730 kW at 206 GHz is generated by a 7.2 A, 1.77 MeV electron beam, and 360 kW at 167 GHz is generated by a 7.0 A, 1.61 MeV electron beam. The lower output power at the latter frequency is due to relatively high losses in the present mm-wave cavity. It is shown experimentally and by simulations that, depending on the electron beam energy, the FEM can operate in single-frequency regime. So far, the pulse length was limited to some 12 μS. Nevertheless, many aspects of generation of mm-wave power have been explored, such as the dependency on electron beam current and energy and settings of the mm-wave cavity
Keywords :
electron accelerators; linear accelerators; masers; relativistic electron beams; wigglers; 200 GHz; 730 kW; Dutch free-electron maser; electron beam current; electron beam energy; electrostatic high power free-electron maser; mm-wave cavity; single-frequency regime; Electron beams; Electrostatics; Frequency; Masers; Mirrors; Particle beams; Physics; Power generation; Rectangular waveguides; Undulators;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.822404
