A high impedance mega-ampere generator for fiber z-pinch experiments

被引：148

作者：

Mitchell, IH ^{[1
]}

Bayley, JM ^{[1
]}

Chittenden, JP ^{[1
]}

Worley, JF ^{[1
]}

Dangor, AE ^{[1
]}

Haines, MG ^{[1
]}

Choi, P ^{[1
]}

机构：

[1] ECOLE POLYTECH, F-91128 PARIS, FRANCE

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1996年 / 67卷 / 04期

关键词：

D O I：

10.1063/1.1146884

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

At Imperial College a mega-ampere generator for plasma implosion experiments has been designed, built, and commissioned. With a final line impedance of 1.25 Omega this terawatt class generator has been designed primarily to drive a maximum current of 1.8 MA with a rise time of 150 ns into high inductance z-pinch loads of interest to radiative collapse studies. This article describes the design and tests of the generator which has a novel configuration of lines and a new design of a magnetically insulated transmission line (MITL). In summary, the generator consists of four Marx generators each of the Hermes III type (2.4 MV, 84 kJ), each connected to 5 Omega pulse forming lines and trigatron gas switches. The power is fed into the matched 1.25 Omega vertical transfer line which feeds a diode stack and a short conical MITL in vacuum which concentrates the power into the z-pinch load. At 80% charge a current rising to 1.4 MA in 150 ns has been measured in a 15 nH inductive short. Similar results are obtained when using a plasma load. (C) 1996 American Institute of Physics.

引用

页码：1533 / 1541

页数：9

共 32 条

[1] OBSERVATIONS OF SOFT-X-RAY PRODUCTION IN THE SPEED-2 PLASMA-FOCUS [J].