Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session DR2: Plasma Surface Interaction II
10:00 AM–11:45 AM,
Thursday, October 12, 2023
Room: Michigan League, Hussey
Chair: Vincent Donnelly, University of Houston
Abstract: DR2.00004 : Characterization of Two-Surface Multipactor with Non-Sinusoidal RF Fields*
11:00 AM–11:15 AM
Presenter:
Asif iqbal
(Michigan State University)
Authors:
Asif iqbal
(Michigan State University)
De-Qi Wen
(Michigan State University)
John P. Verboncoeur
(Michigan State University)
Peng Zhang
(Michigan State University)
We observe that the threshold peak RF voltage and the threshold time averaged RF power per unit area for multipactor development increase with a Gaussian-type electric field compared to those with a sinusoidal electric field. The threshold peak RF voltage and RF power for multipactor increase as the FWHM of the Gaussian profile decreases. Decreasing the FWHM of the Gaussian electric field can reduce the electron population corresponding to the strength of the multipactor at saturation, at fixed time-averaged input power.
[1] D.-Q. Wen et al., Physics of Plasmas 26, 093503 (2019).
[2] D.-Q. Wen et al., Appl. Phys. Lett. 121, 164103 (2022).
[3] A. Iqbal et al., Phys. Plasmas 29, 012102 (2022).
[4] A. Iqbal et al., Phys. Plasmas 26, 024503 (2019).
[5] A. Iqbal et al., Physical Review E 102, 043201 (2020).
*This work was supported by AFOSR MURI under Grant Nos. FA9550-18-1-0062 and FA9550-21-1-0367.
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