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Three new extreme ultraviolet spectrometers on NSTX-U for impurity monitoring

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 Spectrom...

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Published in:Review of scientific instruments 2016-11, Vol.87 (11), p.11E324-11E324
Main Authors: Weller, M. E., Beiersdorfer, P., Soukhanovskii, V. A., Magee, E. W., Scotti, F.
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cited_by cdi_FETCH-LOGICAL-c446t-8f1a6abbff311e5008df69a348d2cac1482c1614aba643b90eab4186d345184b3
cites cdi_FETCH-LOGICAL-c446t-8f1a6abbff311e5008df69a348d2cac1482c1614aba643b90eab4186d345184b3
container_end_page 11E324
container_issue 11
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creator Weller, M. E.
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description 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.
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP - American Institute of Physics
subjects Atomic physics
BENCHMARKS
Consortia
Diagnostic systems
EXTREME ULTRAVIOLET RADIATION
GRAZING
IMPURITIES
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Ion transport
LASERS
LITHIUM
MONITORING
MONITORS
NSTX DEVICE
Scientific apparatus & instruments
Spectrometers
SPHERICAL CONFIGURATION
Toruses
TRANSPORT THEORY
ULTRAVIOLET SPECTROMETERS
WAVELENGTHS
X RADIATION
title Three new extreme ultraviolet spectrometers on NSTX-U for impurity monitoring
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