30 November 2017 0.5 MW/140 GHz TE10,4 gyrotron with built-in highly efficient quasioptical converter
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Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21047A (2017) https://doi.org/10.1117/12.2298694
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom
Abstract
KfK is continuing the development of 140 GHz high power gyrotrons for electron cyclotronwave (ECW) applications. Experiments with a TE10,4 mode gyrotron have been performed usingan axial rf output coupling. The achieved maximum output power of this version amounted to0.7 MW in the design mode with a mode purity of about 99 % and an electronic efficiency of26 %. Since these experiments have been performed using the superconducting magnet systemdesigned for the previous TE0,3 mode tube the pulse length was limited to 5 ms. With a moreappropriate magnet system with increased bore hole diameter which allows the use of a built-inquasioptical converter a pulse length of up to 300 ms with 0.5 MW rf power is expected.In the following we will present some experimental results with respect to frequency step- tuning of the TE10,4 mode gyrotron and describe the radial output coupling system.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Borie, "0.5 MW/140 GHz TE10,4 gyrotron with built-in highly efficient quasioptical converter", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21047A (30 November 2017); doi: 10.1117/12.2298694; https://doi.org/10.1117/12.2298694
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