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Author

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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Study on statistical breakdown delay time in argon gas using a W-band millimeter-wave gyrotron

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Title
Study on statistical breakdown delay time in argon gas using a W-band millimeter-wave gyrotron
Author
Kim, DongsungKim, Sung GugSawant, AshwiniYu, DonghoChoe, MunSeokChoi, EunMi
Keywords
Electric field effects; Electric fields; Millimeter waves; Monte Carlo methods; Plasma simulation Electric-field amplitude; Millimeter-wave gyrotrons; Monte Carlo collision; Particle-in-cell simulations; Plasma initiation; Statistical delays; Threshold electric fields; W-band frequencies
Issue Date
201604
Publisher
AMER INST PHYSICS
Citation
PHYSICS OF PLASMAS, v.23, no.4, pp.043505 -
Abstract
In this study, we investigated plasma initiation delay times for argon volume breakdown at the W-band frequency regime. The threshold electric field is defined as the minimum electric field amplitude needed for plasma breakdown at various pressures. The measured statistical delay time showed an excellent agreement with the theoretical Gaussian distribution and the theoretically estimated formative delay time. Also, we demonstrated that the normalized effective electric field as a function of the product of pressure and formative time shows an outstanding agreement to that of 1D particle-in-cell simulation coupled with a Monte Carlo collision model.
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DOI
http://dx.doi.org/10.1063/1.4945749
ISSN
1070-664X
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