Lithium beam probe for edge density profile measurements on the Large Helical Device

被引：22

作者：

Morisaki, T ^{[1
]}

Komori, A ^{[1
]}

Motojima, O ^{[1
]}

机构：

[1] Natl Inst Fus Sci, Toki 5095292, Japan

来源：

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

关键词：

D O I：

10.1063/1.1538343

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A 30 keV lithium beam probe system to measure edge density and its fluctuation has been developed on the. large helical device (LHD) and has just started its operation. On a test setup relevant to LHD conditions, the equivalent beam current similar to0.1 mA was obtained without the unfavorable beam divergence, in spite of a long distance more than 6 in from the injector. In the preliminary experiments in LHD, it was found that the beam penetrates up to rhosimilar to0.8 (rho:normalized minor radius). By using the electrostatic deflection plates coupled with an in situ beam position monitor, the probe system operation is available, without the magnetic field shield, under the flexible experimental conditions with various magnetic field configurations. (C) 2003 American Institute of Physics.

引用

页码：1865 / 1868

页数：4

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