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Choi, EunMi
THz Vacuum Electronics and Electrodynamics
Research Interests
  • High power millimeter-wave/THz wave, vacuum electronics, plasma breakdown, electron beams, electromagnetics, microwave/RF engineering

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Cold testing of quasi-optical mode converters using a generator for non-rotating high-order gyrotron modes

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Title
Cold testing of quasi-optical mode converters using a generator for non-rotating high-order gyrotron modes
Author
Kim, SunggugKim, DongsungChoe, MunseokLee, W.So, J.Choi, EunMi
Keywords
Cold testing; High-order; Quasi-optical mode converter
Issue Date
201410
Publisher
AMER INST PHYSICS
Citation
REVIEW OF SCIENTIFIC INSTRUMENTS, v.85, no.10, pp.1 - 7
Abstract
In this paper, we test the performance of a quasi-optical, internal-gyrotron mode converter. When cold testing mode converters, a rotating higher-order mode is commonly used. However, this requires a nontrivial design and precise alignment. We thus propose a new technique for testing gyrotron mode converters by using a simple, non-rotating, higher-order mode generator. We demonstrate the feasibility of this technique for a W-band gyrotron quasi-optical mode converter by examining the excitation of a TE6,2 mode from a non-rotating mode generator. Our results demonstrate that this new cold-test scheme is an easy and efficient method for verifying the performance of quasi-optical mode converters.
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DOI
http://dx.doi.org/10.1063/1.4898180
ISSN
0034-6748
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SNS_Journal Papers
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