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DOE OSTI · 1902093

Detailed temperature diagnostic studies for Radishock and COAX experiments

Fryer, Christopher Lee·Wood, Suzannah·Coffing, Shane Xavier·Robey, III, Harry F.·Fontes, Christopher John·Johns, Heather Marie·Kozlowski, Pawel Marek·Urbatsch, Todd James·Lanier, Nicholas Edward·Meyerhofer, David Dietrich·Byvank, Tom
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Abstract

Spectral diagnostics provide a powerful probe of high energy-density physics experiments. By shining an x-ray source on a target, absorption features can be used to determine accurate temperature profiles of that target material. Many studies produce a single temperature/density measurement by fitting these observed spectra. This paper demonstrates how, by leveraging detailed simulations, we can not only measure the average temperature and density, but the full density and temperature profiles. To do so, we must conduct a careful analysis of the uncertainties in the diagnostic measurement. Here we discuss the characteristics and associated uncertainties of the spectral diagnostic used in the COAX, Radishock and OuTi experiments, ultimately demonstrating how these detailed studies increase the potential of this powerful probe.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSexperimental diagnosticsradiation flowx-ray spectra

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Fryer, Christopher Lee, Wood, Suzannah, Coffing, Shane Xavier, Robey, III, Harry F., Fontes, Christopher John, Johns, Heather Marie, Kozlowski, Pawel Marek, Urbatsch, Todd James, Lanier, Nicholas Edward, Meyerhofer, David Dietrich, Byvank, Tom. 2022-11-28. Detailed temperature diagnostic studies for Radishock and COAX experiments. https://doi.org/10.1016/j.hedp.2022.101023

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