A 1 MA, variable risetime pulse generator for high energy density plasma research

被引：88

作者：

Greenly, J. B. ^{[1
]}

Douglas, J. D. ^{[1
]}

Hammer, D. A. ^{[1
]}

Kusse, B. R. ^{[1
]}

Glidden, S. C. ^{[2
]}

Sanders, H. D. ^{[2
]}

机构：

[1] Cornell Univ, Plasma Studies Lab, Ithaca, NY 14853 USA

[2] Appl Pulsed Power Inc, Ithaca, NY 13068 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 07期

关键词：

D O I：

10.1063/1.2949819

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

COBRA is a 0.5 Omega pulse generator driving loads of order 10 nH inductance to >1 MA current. The design is based on independently timed, laser-triggered switching of four water pulse-forming lines whose outputs are added in parallel to drive the load current pulse. The detailed design and operation of the switching to give a wide variety of current pulse shapes and rise times from 95 to 230 ns is described. The design and operation of a simple inductive load voltage monitor are described which allows good accounting of load impedance and energy dissipation. A method of eliminating gas bubbles on the underside of nearly horizontal insulator surfaces in water was required for reliable operation of COBRA; a novel and effective solution to this problem is described. (C) 2008 American Institute of Physics.

引用

页数：5

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