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Author Weller, M. E. ♦ Beiersdorfer, P. ♦ Soukhanovskii, V. A. ♦ Magee, E. W. ♦ Scotti, F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ♦ BENCHMARKS ♦ EXTREME ULTRAVIOLET RADIATION ♦ GRAZING ♦ IMPURITIES ♦ LASERS ♦ LITHIUM ♦ MONITORING ♦ MONITORS ♦ NSTX DEVICE ♦ SPHERICAL CONFIGURATION ♦ TRANSPORT THEORY ♦ ULTRAVIOLET SPECTROMETERS ♦ WAVELENGTHS ♦ X RADIATION
Abstract Three extreme ultraviolet (EUV) spectrometers have been mounted on the National Spherical Torus Experiment–Upgrade (NSTX-U). All three are flat-field grazing-incidence spectrometers and are dubbed X-ray and Extreme Ultraviolet Spectrometer (XEUS, 8–70 Å), Long-Wavelength Extreme Ultraviolet Spectrometer (LoWEUS, 190–440 Å), and Metal Monitor and Lithium Spectrometer Assembly (MonaLisa, 50–220 Å). XEUS and LoWEUS were previously implemented on NSTX to monitor impurities from low- to high-Z sources and to study impurity transport while MonaLisa is new and provides the system increased spectral coverage. The spectrometers will also be a critical diagnostic on the planned laser blow-off system for NSTX-U, which will be used for impurity edge and core ion transport studies, edge-transport code development, and benchmarking atomic physics codes.
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-11-15
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 87
Issue Number 11


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