A 250?GHz, 50?W, CW Second Harmonic Gyrotron |
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| Authors: | M. V. Kartikeyan E. Borie M. Thumm |
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| Affiliation: | (1) Department of Electronics & Computer Engineering, Indian Institute of Technology, Roorkee, 247 667, India;(2) Forschungszentrum Karlsruhe, Association Euratom-FZK, Institut für Hochleistungsimpuls- und Mikrowellentechnik, Hermann-von-Helmholtzplatz 1, D 73644 Eggenstein-Leopoldshafen, Germany;(3) Universitaet Karlsruhe, IHE, Kaiserstr. 12, D 76131 Karlsruhe, Germany |
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| Abstract: | A design concept of a 250 GHz, ≈ 50 W, CW, second harmonic gyrotron for spectroscopy will be presented in this paper. Mode competition, in particular with regard to competition with first harmonic modes, and mode selection procedures are carefully investigated by considering various candidate modes and the TE6,2 and TE6,3 modes are chosen as probable operating modes. Cold cavity and self-consistent calculations of power and efficiency are carried out to determine optimum parameters for these two modes. The results indicate that an output power of well over 50 W, CW can be achieved. |
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| Keywords: | Harmonic gyrotrons Electron paramagnetic resonance spectroscopy Dynamic nuclear polarization |
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