Dynamic Model for the Z Accelerator Vacuum Section Based on Transmission Line Code

HU Yixiang; QIU Aici; WANG Liangping; HUANG TaoCONG Peitian; ZHANG Xinjun; LI Yan; ZENG Zhengzhong; SUN Tieping; LEI Tianshi; WU Hanyu GUO Ning; HAN J

Plasma Science and Technology > 2011 > 13(5): 631-636.

HU Yixiang, QIU Aici, WANG Liangping, HUANG TaoCONG Peitian, ZHANG Xinjun, LI Yan, ZENG Zhengzhong, SUN Tieping, LEI Tianshi, WU Hanyu GUO Ning, HAN J. Dynamic Model for the Z Accelerator Vacuum Section Based on Transmission Line Code[J]. Plasma Science and Technology, 2011, 13(5): 631-636.

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Dynamic Model for the Z Accelerator Vacuum Section Based on Transmission Line Code

1 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China 2 Northwest Institute of Nuclear Technology, P.O. box 69-10, Xi’an 710024, China

Funds: supported by National Natural Science Foundation of China (No. 50637010 )

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Received Date: July 19, 2010

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Abstract

Abstract

The transmission-line-circuit model of the Z accelerator, developed originally by W. A. Stygar, P. A. Corcoran, et al., is revised. The revised model uses different calculations for the electron loss and flow impedance in the magnetically insulated transmission line system of the Z accelerator before and after magnetic insulation is established. By including electron pressure and zero electric field at the cathode, a closed set of equations is obtained at each time step, and dynamic shunt resistance (used to represent any electron loss to the anode) and flow impedance are solved, which have been incorporated into the transmission line code for simulations of the vacuum section in the Z accelerator. Finally, the results are discussed in comparison with earlier findings to show the effectiveness and limitations of the model.
- electron emission,
- flow impedance,
- magnetically insulated transmission line (MITL),
- space-charge-limited (SCL) flow

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