X-RAY DIAGNOSTIC FOR MEASUREMENT OF HOT-ELECTRON POWER LOSS

被引：3

作者：

RESS, D ^{[1
]}

RICE, BW ^{[1
]}

HORTON, RD ^{[1
]}

机构：

[1] TRW CO INC,REDONDO BEACH,CA 90278

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 10期

关键词：

D O I：

10.1063/1.1141828

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A significant fraction of the power lost from a confined plasma can be carried by energetic electrons. When such electrons are incident on a probe or limiting surface, they produce thick-target x rays. It is shown that a properly filtered measurement of this x-ray flux is proportional to the electron-power loss, with little dependence on the electron loss mechanism and velocity-space distribution. The diagnostic was successfully implemented to study the radial loss of hot electrons in the Tandem Mirror Experiment-Upgrade. The method provides a very fast measurement of electron loss processes, and could therefore be useful in other areas of plasma research such as magnetic confinement in tokamaks, and inertial-confinement fusion.

引用

页码：2777 / 2779

页数：3