@article{5877,
  author = {A. G. A. Verhoeven and W. A. Bongers and V. L. Bratman and M. Caplan and G. G. Denisov and G. van Dijk and C. A. J. van der Geer and P. Manintveld and A. J. Poelman and J. Pluygers and M . Y. Shmelyov and P. H. M. Smeets and A. B. Sterk and W. H. Urbanus},
  title = {First high power experiments with the Dutch free electron maser},
  abstract = {A free electron maser (FEM) has been built as a mm-wave source for applications on future fusion research devices such as ITER, the international tokamak experimental reactor [M. A. Makowski, F. Elio, and D. Loeser, April 97, Proc. 10th Workshop on ECE and ECRH, EC10, 549-559. World Scientific (1998)]. A unique feature of the Dutch fusion-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 first phase of the project, a so-called inverse setup is used. The electron gun is mounted inside the high-voltage terminal. The entire beam line was tested successfully with extremely low loss current, lower than 0.05%. This included the accelerating structure up to 2 MV level and the transport through the undulator. First generation of mm-waves was achieved in October 1997. With an electron beam current around 8 A and an accelerator voltage of 1.76 IMV the mm-wave pulse starts after 3 mu s and lasts for 3 mu s, reaching a maximum saturated peak power level of more than 500 kW at a frequency of 200 GHz. Output power, start-up time, and frequency correspond well with simulation results. (C) 1998 American Institute of Physics.},
  year = {1998},
  journal = {Physics of Plasmas},
  volume = {5},
  number = {5},
  pages = {2029-2036},
  month = {May},
  isbn = {1070-664X},
  doi = {10.1063/1.872874},
  language = {eng},
}