Direct removal of edge-localized pollutant emission in a near-infrared bremsstrahlung measurement

被引：13

作者：

Anderson, JK ^{[1
]}

Andrew, PL ^{[1
]}

Chapman, BE ^{[1
]}

Craig, D ^{[1
]}

Den Hartog, DJ ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2003年 / 74卷 / 03期

关键词：

D O I：

10.1063/1.1537440

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Visible and near-infrared electron-ion bremsstrahlung measurements in fusion research devices used to determine the effective ionic charge (Z(eff)), are often plagued by pollutant emission from the cool-edge region. The primary sources of visible and near-infrared non-bremsstrahlung continuum emission in the Madison Symmetric Torus arise from electron-neutral interactions, and the pollutant emission is hence directly proportional to the bulk neutral density. Simultaneously monitoring the total emission at 1040 nm and the neutral contaminant (via D-alpha emission) has enabled an extraction of the electron-ion bremsstrahlung and a measurement of Z(eff) at comparatively low electron density (10(13) cm(-3)). (C) 2003 American Institute of Physics.

引用

页码：2107 / 2110

页数：4

共 24 条

[1]

ANDERSON J, 2001, THESIS U WISCONSIN M, P84024

[2]

Bekefi G., 1966, Radiation Processes in Plasmas

[3] Reconstruction of the radiation emitted by the intrinsic impurities in the RFX reversed field pinch [J].