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Title: Development of a High Resolution X-Ray Imaging Crystal Spectrometer for Measurement of Ion-Temperature and Rotation-Velocity Profiles in Fusion Energy Research Plasmas

A new imaging high resolution x-ray crystal spectrometer (XCS) has been developed to measure continuous profiles of ion temperature and rotation velocity in fusion plasmas. Following proof-of-principle tests on the Alcator C-Mod tokamak and the NSTX spherical tokamak, and successful testing of a new silicon, pixilated detector with 1MHz count rate capability per pixel, an imaging XCS is being designed to measure full profiles of Ti and vφ on C-Mod. The imaging XCS design has also been adopted for ITER. Ion-temperature uncertainty and minimum measurable rotation velocity are calculated for the C-Mod spectrometer. The affects of x-ray and nuclear-radiation background on the measurement uncertainties are calculated to predict performance on ITER.
Authors:
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Publication Date:
OSTI Identifier:
960230
Report Number(s):
PPPL-4296
TRN: US0903065
DOE Contract Number:
De-ACO2-76CHO3073
Resource Type:
Technical Report
Resource Relation:
Related Information: Invention Disclosure. Title X-ray Imaging Crystal Spectrometers for Extended X-ray Sources
Research Org:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DESIGN; ION TEMPERATURE; PERFORMANCE; RESOLUTION; ROTATION; SILICON; SPECTROMETERS; TESTING; THERMONUCLEAR REACTORS; VELOCITY ion-temperature, rotation velocity, diagnostic, x-ray, crystal spectrometer, detector, C-Mod, ITER