Development of a multichannel time-of-flight technique for plasma potential profile measurements by heavy ion beam diagnostic on the tokamak ISTTOK

被引：0

作者：

Nedzelskiy, I. S. ^{[1
]}

Malaquias, A. ^{[1
]}

Tashchev, Yu. I. ^{[1
]}

Silva, C. ^{[1
]}

Figueiredo, H. ^{[1
]}

Goncalves, B. ^{[1
]}

Fernandes, H. ^{[1
]}

Varandas, C. A. F. ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Ctr Fusao Nucl, EURATOM Assoc, IST,Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

PLASMA AND FUSION SCIENCE | 2008年 / 996卷

关键词：

time-of-flight; heavy ion beam; ISTTOK;

D O I：

暂无

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This contribution summarizes the current implementation of the time-of-flight (TOF) energy analysis for plasma potential measurements by the heavy ion beam diagnostic (HIBD) on the tokamak ISTTOK. The technique is described in detail. The results of the measurements of the ISTTOK plasma potential radial profile are presented. It is proved that the TOF energy analysis is suitable for simultaneous multichannel detection using a multiple cell array detector. With the aim of improving the signal-to-noise ratio of the diagnostic, the channeltrons have recently been installed on the "starf' and "stop" detectors and preliminary results are discussed.

引用

页码：185 / 191

页数：7

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