Chinese Physics C > 2008, Vol. 32 > Issue(10): 842-845 DOI: 10.1088/1674-1137/32/10/015

Axial electric wake field inside the induction gap exited by the intense electron beam

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While an intense electron beam passes through the accelerating gaps of a linear induction accelerator, a strong wake field will be excited. In this paper a relatively simple model is established based on the interaction between the transverse magnetic wake field and the electron beam, and the numerical calculation in succession generates a magnetic wake field distribution along the accelerator and along the beam pulse as well. The axial electric wake field is derived based on the relation between field components of a resonant mode. According to some principles in existence, the influence of this field on the high voltage properties of the induction gap is analyzed. The Dragon-I accelerator is taken as an example, and its maximum electric wake field is about 17 kV/cm, which means the effect of the wake field is noticeable.

References

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ZHANG Kai-Zhi, ZHANG Huang, LONG Ji-Dong, YANG Guo-Jun, HE Xiao-Zhong and WANG Hua-Cen. Axial electric wake field inside the induction gap exited by the intense electron beam[J]. Chinese Physics C, 2008, 32(10): 842-845. doi: 10.1088/1674-1137/32/10/015

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Received: 2007-12-18
Revised: 2008-02-18

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Axial electric wake field inside the induction gap exited by the intense electron beam

Corresponding author:ZHANG Kai-Zhi,

Received Date:2007-12-18

Accepted Date:2008-02-18

Available Online:2008-10-05

Abstract:

While an intense electron beam passes through the accelerating gaps of a linear induction accelerator, a strong wake field will be excited. In this paper a relatively simple model is established based on the interaction between the transverse magnetic wake field and the electron beam, and the numerical calculation in succession generates a magnetic wake field distribution along the accelerator and along the beam pulse as well. The axial electric wake field is derived based on the relation between field components of a resonant mode. According to some principles in existence, the influence of this field on the high voltage properties of the induction gap is analyzed. The Dragon-I accelerator is taken as an example, and its maximum electric wake field is about 17 kV/cm, which means the effect of the wake field is noticeable.

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Axial electric wake field inside the induction gap exited by the intense electron beam

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通讯作者:陈斌, bchen63@163.com

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