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

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 befor...

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Published inPlasma science & technology Vol. 13; no. 5; pp. 631 - 636
Main Author 呼义翔 邱爱慈 王亮平 黄涛 丛培天 张信军 李岩 曾正中 孙铁平 雷天时 吴撼宇 郭宁 韩娟娟
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.10.2011
Subjects
Z加速器
代码
动态模型
电子损失
电路模型
真空
磁绝缘传输线
输电线路
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Summary: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.
Bibliography:electron emission, flow impedance, magnetically insulated transmission line（MITL）, space-charge-limited （SCL） flow
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.
34-1187/TL
ISSN:1009-0630
DOI:10.1088/1009-0630/13/5/24