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arXiv · 2001.03559

A quantitative study of some sources of uncertainty in opacity measurements

Jean-Christophe Pain·Franck Gilleron
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Abstract

Laboratory (laser and Z-pinch) opacity measurements of well-characterized plasmas provide data to assist inertial confinement fusion, astrophysics and atomic-physics research. In order to test the atomic-physics codes devoted to the calculation of radiative properties of hot plasmas, such experiments must fulfill a number of requirements. In this work, we discuss some sources of uncertainty in absorption-spectroscopy experiments, concerning areal mass, background emission, intensity of the backlighter and self-emission of the plasma. We also study the impact of spatial non-uniformities of the sample.

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Jean-Christophe Pain, Franck Gilleron. 2019-12-17. A quantitative study of some sources of uncertainty in opacity measurements. https://doi.org/10.1016/j.hedp.2020.100745

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