Development of a spatially resolving x-ray crystal spectrometer for measurement of ion-temperature (Ti) and rotation-velocity (v) profiles in ITER

被引:26
|
作者
Hill, K. W. [1 ]
Bitter, M. [1 ]
Delgado-Aparicio, L. [1 ]
Johnson, D. [1 ]
Feder, R. [1 ]
Beiersdorfer, P. [2 ]
Dunn, J. [2 ]
Morris, K. [2 ]
Wang, E. [2 ]
Reinke, M. [3 ]
Podpaly, Y. [3 ]
Rice, J. E. [3 ]
Barnsley, R. [4 ]
O'Mullane, M. [5 ]
Lee, S. G. [6 ]
机构
[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[3] MIT Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
[4] Cadarache Ctr, ITER Cadarache JWS, F-13108 St Paul Les Durance, France
[5] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland
[6] Natl Fus Res Inst, Taejon 305333, South Korea
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2010年 / 81卷 / 10期
关键词
D O I
10.1063/1.3492414
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Imaging x-ray crystal spectrometer (XCS) arrays are being developed as a US-ITER activity for Doppler measurement of T-i and v profiles of impurities (W, Kr, and Fe) with similar to 7 cm (a/30) and 10-100 ms resolution in ITER. The imaging XCS, modeled after a prototype instrument on Alcator C-Mod, uses a spherically bent crystal and 2D x-ray detectors to achieve high spectral resolving power (E/dE>6000) horizontally and spatial imaging vertically. Two arrays will measure Ti and both poloidal and toroidal rotation velocity profiles. The measurement of many spatial chords permits tomographic inversion for the inference of local parameters. The instrument design, predictions of performance, and results from C-Mod are presented. (C) 2010 American Institute of Physics. [doi:10.1063/1.3492414]
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页数:4
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