A Compact High Current Vacuum Diode Based on a Ceramic-Metal Welding Interface

• Authors: T. Xun , J. Zhang , H. Yang , Y. Wang , Z. Liu
• Languages of publication: EN

Abstracts

EN

For one kind of high current diodes composed of a ceramic-metal welding vacuum interface, the electrical design was presented. For compactness, a radial type insulator and a cone-column anode crust were adopted. The shielding methods around cathode and anode region were applied to mitigate the influence of welding solder to vacuum flashover. Finite Element Analysis (FEA) simulation results indicated that by adjusting the anode outline and shielding shape, the electric fields along the ceramic were well distributed. High voltage test was conducted on a long-pulse accelerator and experimental results confirm the theoretic design: the diode can stably hold on 400 kV and 200 ns voltage pulse.

Keywords

EN

52.59.Mv; 73.20.-r; 84.70.+p

Discipline

• 73.20.-r: Electron states at surfaces and interfaces
• 84.70.+p: High-current and high-voltage technology: power systems; power transmission lines and cables(for superconducting cables, see 84.71.Fk)
• 52.59.Mv: High-voltage diodes(for high-current and high-voltage technology, see 84.70.+p)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1013-1015

Dates

published

2009-06

Contributors

author

T. Xun

• College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China

author

J. Zhang

• College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China

author

H. Yang

• College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China

author

Y. Wang

• College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China

author

Z. Liu

• College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China

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Identifiers

DOI

10.12693/APhysPolA.115.1013