Near midplane scintillator-based fast ion loss detector on DIII-D

被引：24

作者：

Chen, X. ^{[1
]}

Fisher, R. K. ^{[2
]}

Pace, D. C. ^{[2
]}

Garcia-Munoz, M. ^{[3
]}

Chavez, J. A. ^{[2
]}

Heidbrink, W. W. ^{[1
]}

Van Zeeland, M. A. ^{[2
]}

机构：

[1] Univ Calif Irvine, Irvine, CA 92717 USA

[2] Gen Atom Co, San Diego, CA 92186 USA

[3] EURATOM, Max Planck Inst Plasmaphys, D-8046 Garching, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2012年 / 83卷 / 10期

关键词：

TFTR;

D O I：

10.1063/1.4732063

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new scintillator-based fast-ion loss detector (FILD) installed near the outer midplane of the plasma has been commissioned on DIII-D. This detector successfully measures coherent fast ion losses produced by fast-ion driven instabilities (<= 500 kHz). Combined with the first FILD at similar to 45 degrees below the outer midplane [R. K. Fisher, et al., Rev. Sci. Instrum. 81, 10D307 (2010)], the two-detector system measures poloidal variation of losses. The phase space sensitivity of the new detector (gyroradius r(L) similar to [1.5-8] cm and pitch angle alpha similar to [35 degrees-85 degrees]) is calibrated using neutral beam first orbit loss measurements. Since fast ion losses are localized poloidally, having two FILDs at different poloidal locations allows for the study of losses over a wider range of plasma shapes and types of loss orbits. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732063]

引用

页数：3

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