@article{5655, author = {W. H. Urbanus and W. A. Bongers and G. van Dijk and C. A. J. van der Geer and J. P. Vanieperen and A. Vanderlinden and P. Manintveld and A. B. Sterk and A. V. Tulupov and A. G. A. Verhoeven and M. J. van der Wiel and V. L. Bratman and G. G. Denisov and A. A. Varfolomeev and S. N. Ivanchenkov and A. S. Khlebnikov and M. Catellino and A. Salop and M. Caplan}, title = {A 130-260-Ghz, 1-Mw Free-Electron Maser for Fusion}, abstract = {We report on design work and testing of several main components of the FOM-Fusion-FEM project. Measurements on the electron gun are presented, showing a uniform beam current profile and a low halo current. A time-dependent simulation study of the interaction between the electron beam and the mm-waves shows that, for proper undulator tapering, longitudinal mode competition results in a quasi single-mode regime. Further, some high power and detailed low power measurements on mock-ups of the waveguide system are presented, showing that the reflection and outcoupling systems perform well.}, year = {1995}, journal = {Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment}, volume = {358}, number = {1-3}, pages = {155-158}, month = {Apr 11}, isbn = {0168-9002}, doi = {10.1016/0168-9002(94)01506-6}, language = {eng}, }