Electron bunching from a dc-biased, single-surface multipactor with realistically broad energy spectrum and emission angle of secondary electrons

Shin, Dongwon; Jeon, Seok-Gy; Kim, Jung-Il; Hur, Min Sup

doi:10.1063/1.3685697

Cited by 5 publications

(3 citation statements)

References 15 publications

(23 reference statements)

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“…For larger velocity distributions, numerical simulation has been used. It is important to note that all these studies [8][9][10][11][12] use the "simple stability condition" in their analyses.…”

Section: Introductionmentioning

confidence: 99%

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How the “main condition” of phase stability can explain the effect of the velocity deviation of secondary electrons in DC-biased single-sided multipactors

Mostajeran

2014

Physics of Plasmas

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In this work, a "main condition" for phase stability has been employed to investigate the effects of the velocity deviation of the electrons in DC-biased single-sided multipactors (MPs). In a previous study [M. Mostajeran, Phys. Plasmas 21, 053108 (2014)], a stability equation was derived, where the secondary electron was assumed to have zero initial velocity and the phase deviation from the resonant phase was considered. In this work, both deviations in phase and velocity from the resonant condition are taken into account, assuming nonzero initial velocity for the secondary electrons. Using the main condition for stability, it is shown that MP discharge can rise in situations, where large velocity deviations from initial velocity and large phase deviations from resonant phase exist. This is contrary to what can be predicted on the basis of the "simple stability condition." This result is further confirmed by numerical simulations. V C 2014 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 99%

“…In Ref. 12, a wider distribution of the longitudinal velocities of secondary electrons and their emission angles are considered than the one used in Ref. 11; the effects of this distribution are then studied theoretically.…”

Section: Introductionmentioning

confidence: 99%

How the “main condition” of phase stability can explain the effect of the velocity deviation of secondary electrons in DC-biased single-sided multipactors

Mostajeran

2014

Physics of Plasmas

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“…A few studies [10][11][12][13][14][15] have been carried out on the DCbiased single-sided MP. Vance has observed DC-biased single-sided MP in two-sided MP experiments when the DC electric field was applied perpendicular to the surface.…”

Section: Introductionmentioning

confidence: 99%

Initial phase zone for phase locking to the resonance, using “main condition” of phase stability in DC-biased single-sided multipactor

Mostajeran

2014

Physics of Plasmas

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In the present work, the concept of accurate phase stability is employed to study a DC-biased single-sided multipactor. A "main condition" of phase stability was introduced in our previous studies of two-sided multipactors [M. Mostajeran, J. Instrum. 8, P04024 (2013); M. Mostajeran and M. Lamehi Rachti, Nucl. Instrum. Methods Phys. Res. A 615, 1-5 (2010)]. Using the same condition and assuming zero initial velocity for the secondary electrons, a regime of multipactors outside the resonance zones is found. The theoretical results are then verified by numerical simulation. V C 2014 AIP Publishing LLC. [http://dx.

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Improving the microwave window breakdown threshold by using a fluorinated, periodically patterned surface

Chen

Chang

Liu

et al. 2013

Journal of Applied Physics

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The breakdown at the dielectric window of the high-power microwave (HPM) horn limits the maximum radiation power of HPM system, and keeps the bottle neck of the development of the HPM technology in decades. In this paper, the multi-way diagnostics for the window breakdown at vacuum/dielectric interface are studied in the C-band multi-gigawatt HPM experiment with the atmospheric pressure SF6 environment. The method of using the fluorinated periodic surface is demonstrated to significantly improve the power capacity by fourfold, compared with the flat surface. The threshold for fluorinated periodic surface could be higher than 70 kV/cm for HPM with the frequency 4.3 GHz, and 40 ns pulse width.

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Electron bunching from a dc-biased, single-surface multipactor with realistically broad energy spectrum and emission angle of secondary electrons

Cited by 5 publications

References 15 publications

How the “main condition” of phase stability can explain the effect of the velocity deviation of secondary electrons in DC-biased single-sided multipactors

How the “main condition” of phase stability can explain the effect of the velocity deviation of secondary electrons in DC-biased single-sided multipactors

Initial phase zone for phase locking to the resonance, using “main condition” of phase stability in DC-biased single-sided multipactor

Improving the microwave window breakdown threshold by using a fluorinated, periodically patterned surface

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