Observation of Simultaneous Oscillation of Multiple Modes in a CW 300 GHz Gyrotron
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概要
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Multi-mode oscillation was observed in a 300 GHz fully CW gyrotron. It has been developed and installed in the Research Center for Development of Far-Infrared Region, University of Fukui as a power source of a submillimeter-wave material processing system. This gyrotron delivers 1.75 kW/CW at maximum. The radiation pattern is a Gaussian beam when the magnetic field strength Bc at the cavity is properly adjusted. However, within a range of Bc values, simultaneous oscillation of competing modes is observed, manifesting in radiation of the output power in multiple directions.
著者
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MITSUDO Seitaro
Research Center for Development of Far-Infrared Region, University of Fukui
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IDEHARA Toshitaka
Research Center for Development of Far-Infrared Region, University of Fukui
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Ogawa Isamu
Research Center For Development Of Far Infrared Region Fukui University
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Idehara Toshitaka
Research Center For Development Of Far Infrared Region Fukui University
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Mitsudo Seitaro
Research Center For Development Of Far Infrared Region University Of Fukui
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Saito Teruo
Research Center for Developement of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan
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NAKANO Tomoaki
Research Center for Development of Far-Infrared Region, University of Fukui
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