|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|
|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.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Review of Scientific Instruments|
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