17–22 May 2026
C.I.D
Europe/Zurich timezone

Non-Resonant Multipactor Mechanism and SEY Impact in VHF CW Electron Guns

THP3615
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC3.T02: Advanced techniques/Novel sources: Electron Sources Poster session

Speaker

Yitong Duan (Tsinghua University)

Description

Multipactor in very-high-frequency (VHF) continuous-wave (CW) electron guns threatens stability, with non-resonant behavior and secondary electron yield (SEY) as key factors. This study clarifies non-resonant multipactor arises from weak local electric fields and disrupted electron-field resonance. It compares SEY models and adjusts the Furman model to match practical conditions. Combined with the optimized cavity, the adjusted SEY model reduced $\alpha$ to near-zero, eliminating multipactor. Particle analysis also showed multipactor concentrates on the anode side. This work provides a comprehensive solution for VHF gun multipactor risks.

In which format do you inted to submit your paper? LaTeX

Author

Yitong Duan (Tsinghua University)

Co-authors

Lianmin Zheng (Tsinghua University) Ying-Chao Du (Tsinghua University)

Presentation materials

There are no materials yet.