Journal
PLASMA PHYSICS AND CONTROLLED FUSION
Volume 52, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0741-3335/52/8/085014
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Funding
- National Science Foundation of China [10725523, 10975155]
- ITER Relevant Foundation in China [2009GB104003]
- National Research Council of Science & Technology (NST), Republic of Korea [EN1001] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A high-resolution imaging x-ray crystal spectrometer is described for implementation on the EAST tokamak to provide spatially and temporally resolved data on the ion temperature, electron temperature and poloidal plasma rotation. These data are derived from observations of the satellite spectra of helium-like argon, Ar XVII, which is the dominant charge state for electron temperatures in the range from 0.4 to 3.0 keV and which is accessible to EAST. Employing a novel design, which is based on the imaging properties of spherically bent crystals, the spectrometers will provide spectrally and spatially resolved images of the plasma for all experimental conditions, which include ohmically heated discharges as well as plasmas with rf and neutral-beam heating. The experimental setup and initial experimental results are presented.
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