Measurements of K-shell Ar spectra from z-pinch dynamic hohlraum experiments made using a focusing spectrometer with spatial resolution

Focusing spectrometer designs offer the potential to simultaneously obtain high spectral resolution and high spatial resolution, though usually at the penalty of a limited spectral range. To measure K-shell Ar emission from z-pinch-driven dynamic hohlraum capsule implosion experiments at Sandia'...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2006-05, Vol.99 (1), p.595-613
Main Authors: Sinars, D.B., Chandler, G.A., Bailey, J.E., Mancini, R.C., Rochau, G.A., Wenger, D.F., Adams, R.G., Adams, M.L., Scott, H.A., Faenov, A.Ya, Pikuz, T.A., Pikuz, S.A.
Format: Article
Language:English
Subjects:
Argon
Dense plasma
Focusing spectrometer
Inertial confinement fusion
K-shell spectroscopy
X-ray spectroscopy
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Summary:Focusing spectrometer designs offer the potential to simultaneously obtain high spectral resolution and high spatial resolution, though usually at the penalty of a limited spectral range. To measure K-shell Ar emission from z-pinch-driven dynamic hohlraum capsule implosion experiments at Sandia's Z facility, a unique focusing spectrometer configuration was built. For Ar sources ⩽ 1 mm the spectrometer provides λ / Δ λ > 2000 and σ < 50 μ m over the spectral range from 2.95 Å to 3.78 Å . This diagnostic has provided high-quality data suitable for line-shape and modeling analysis. The instrument is described in detail along with some example data and analysis from dynamic hohlraum experiments.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2005.05.048