Spectroscopic diagnosis of foam z-pinch plasmas on SATURN

被引：2

作者：

Nash, TJ ^{[1
]}

Derzon, MS ^{[1
]}

Allshouse, G ^{[1
]}

Deeney, C ^{[1
]}

Jobe, D ^{[1
]}

Seaman, J ^{[1
]}

Gilliland, T ^{[1
]}

McGurn, J ^{[1
]}

McFarlane, JJ ^{[1
]}

Wang, P ^{[1
]}

机构：

[1] UNIV WISCONSIN,MADISON,WI

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1997年 / 68卷 / 01期

关键词：

D O I：

10.1063/1.1147740

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Solid and annular silicon aerogel and agar foams were imploded on the SATURN accelerator to study plasma initiation, acceleration, and stagnation. SATURN delivers 7 MA with a 50 ns rise time to these foam loads. We fielded several spectroscopic diagnostics to measure plasma parameters throughout the z-pinch discharge. A spatially resolved single frame time-gated extreme ultraviolet spectrometer measured the extent of plasma ablation off the surface of the foam. A time integrated crystal spectrometer showed that characteristic K shell radiation of silicon in the aerogel and of sulfur and sodium impurities in the agar were attenuated when the foam loads were coated with a conductive layer of gold. A time-resolved pinhole camera showed that in general the quality of the pinch implosions was poor but improved with increasing efforts to improve current continuity such as prepulse and conductive coatings. (C) 1997 American Institute of Physics.

引用

页码：1083 / 1086

页数：4