Multipacting saturation in parallel plate and micro-pulse electron gun

LIAO Lang; ZHANG Meng; ZHAO Ming-Hua

doi:10.1088/1674-1137/39/2/027003

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2015, Vol. 39> Issue(2) : 027003 DOI: 10.1088/1674-1137/39/2/027003

Multipacting saturation in parallel plate and micro-pulse electron gun

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Abstract：
A novel parallel plate model is proposed that divides the electron cloud into three parts at saturation, and it is studied in detail using both an analytical approach and particle-in-cell (PIC) code simulations. As one part of the electron cloud, ribbons modes are suggested by tracking the trajectory of individual particles, and the aim of this mode form is to simplify the progress of the multipacting effect in the parallel plate so as to be eliminated by optimizing RF parameters. The micro-pulse electron gun (MPG) has demonstrated the potential to address the need for high peak and average current electron beams, hence studying the multipacting in MPG is essential. On the basis of studying multipacting in the parallel plate, it is clear that increasing the cavity voltage is of interest in yielding high quality beams in the gun.

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LIAO Lang, ZHANG Meng and ZHAO Ming-Hua. Multipacting saturation in parallel plate and micro-pulse electron gun[J]. Chinese Physics C, 2015, 39(2): 027003. doi: 10.1088/1674-1137/39/2/027003

LIAO Lang, ZHANG Meng and ZHAO Ming-Hua. Multipacting saturation in parallel plate and micro-pulse electron gun[J]. Chinese Physics C, 2015, 39(2): 027003. doi: 10.1088/1674-1137/39/2/027003 shu

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Received: 2014-04-09
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Multipacting saturation in parallel plate and micro-pulse electron gun

Corresponding author: LIAO Lang,

Corresponding author: ZHAO Ming-Hua,

Received Date: 2014-04-09
Accepted Date: 1900-01-01
Available Online: 2015-02-05

Abstract: A novel parallel plate model is proposed that divides the electron cloud into three parts at saturation, and it is studied in detail using both an analytical approach and particle-in-cell (PIC) code simulations. As one part of the electron cloud, ribbons modes are suggested by tracking the trajectory of individual particles, and the aim of this mode form is to simplify the progress of the multipacting effect in the parallel plate so as to be eliminated by optimizing RF parameters. The micro-pulse electron gun (MPG) has demonstrated the potential to address the need for high peak and average current electron beams, hence studying the multipacting in MPG is essential. On the basis of studying multipacting in the parallel plate, it is clear that increasing the cavity voltage is of interest in yielding high quality beams in the gun.