Electron-beam transport studies for radiographic applications

被引：0
|
作者：
Hinshelwood, DD [1 ]
Ponce, DM [1 ]
Mosher, D [1 ]
Murphy, DP [1 ]
Schumer, JW [1 ]
Strasburg, SD [1 ]
Weber, BV [1 ]
机构：
[1] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA
来源：
PPC-2003: 14TH IEEE INTERNATIONAL PULSED POWER CONFERENCE, VOLS 1 AND 2, DIGEST OF TECHNICAL PAPERS | 2003年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have measured electron-beam-produced gas ionization in a paraxial-diode gas cell, using three different interferometric arrangements. We have also measured the beam net current at the channel wall. In the range of tens of kA/cm(2) and 0.3-5 Torr, the electron density is in the 10(17) cm(-3) range, scaling strongly with beam current density and sub-linearly with pressure. The fractional net current ranges from 20-40%. We are developing a rate-equation ionization model whose results are consistent with these measurements.
引用
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页码：491 / 494
页数：4
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