High-resolution time-resolved extreme ultraviolet spectroscopy on NSTX

J. K. Lepson; P. Beiersdorfer; J. Clementson; M. Bitter; K. W. Hill; R. Kaita; C. H. Skinner; A. L. Roquemore; G. Zimmer

doi:10.1063/1.4731753

High-resolution time-resolved extreme ultraviolet spectroscopy on NSTX

J. K. Lepson, P. Beiersdorfer, J. Clementson, M. Bitter, K. W. Hill, R. Kaita, C. H. Skinner, A. L. Roquemore, G. Zimmer

PPPL Engineering

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19 Scopus citations

Abstract

We report on upgrades to the flat-field grazing-incidence grating spectrometers X-ray and Extreme Ultraviolet Spectrometer (XEUS) and Long-Wavelength Extreme Ultraviolet Spectrometer (LoWEUS), at the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory. XEUS employs a variable space grating with an average spacing of 2400 lines/mm and covers the 9-64 Å wavelength band, while LoWEUS has an average spacing of 1200 lines/mm and is positioned to monitor the 90-270 Å wavelength band. Both spectrometers have been upgraded with new cameras that achieve 12.5 ms time resolution. We demonstrate the new time resolution capability by showing the time evolution of iron in the NSTX plasma.

Original language	English (US)
Article number	10D520
Journal	Review of Scientific Instruments
Volume	83
Issue number	10
DOIs	https://doi.org/10.1063/1.4731753
State	Published - Oct 2012

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.4731753

Cite this

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title = "High-resolution time-resolved extreme ultraviolet spectroscopy on NSTX",

abstract = "We report on upgrades to the flat-field grazing-incidence grating spectrometers X-ray and Extreme Ultraviolet Spectrometer (XEUS) and Long-Wavelength Extreme Ultraviolet Spectrometer (LoWEUS), at the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory. XEUS employs a variable space grating with an average spacing of 2400 lines/mm and covers the 9-64 {\AA} wavelength band, while LoWEUS has an average spacing of 1200 lines/mm and is positioned to monitor the 90-270 {\AA} wavelength band. Both spectrometers have been upgraded with new cameras that achieve 12.5 ms time resolution. We demonstrate the new time resolution capability by showing the time evolution of iron in the NSTX plasma.",

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AU - Lepson, J. K.

AU - Beiersdorfer, P.

AU - Clementson, J.

AU - Bitter, M.

AU - Hill, K. W.

AU - Kaita, R.

AU - Skinner, C. H.

AU - Roquemore, A. L.

AU - Zimmer, G.

PY - 2012/10

Y1 - 2012/10

N2 - We report on upgrades to the flat-field grazing-incidence grating spectrometers X-ray and Extreme Ultraviolet Spectrometer (XEUS) and Long-Wavelength Extreme Ultraviolet Spectrometer (LoWEUS), at the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory. XEUS employs a variable space grating with an average spacing of 2400 lines/mm and covers the 9-64 Å wavelength band, while LoWEUS has an average spacing of 1200 lines/mm and is positioned to monitor the 90-270 Å wavelength band. Both spectrometers have been upgraded with new cameras that achieve 12.5 ms time resolution. We demonstrate the new time resolution capability by showing the time evolution of iron in the NSTX plasma.

AB - We report on upgrades to the flat-field grazing-incidence grating spectrometers X-ray and Extreme Ultraviolet Spectrometer (XEUS) and Long-Wavelength Extreme Ultraviolet Spectrometer (LoWEUS), at the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory. XEUS employs a variable space grating with an average spacing of 2400 lines/mm and covers the 9-64 Å wavelength band, while LoWEUS has an average spacing of 1200 lines/mm and is positioned to monitor the 90-270 Å wavelength band. Both spectrometers have been upgraded with new cameras that achieve 12.5 ms time resolution. We demonstrate the new time resolution capability by showing the time evolution of iron in the NSTX plasma.

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High-resolution time-resolved extreme ultraviolet spectroscopy on NSTX

Abstract

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