A quantitative study of some sources of uncertainty in opacity measurements. (arXiv:2001.03559v1 [physics.plasm-ph])

A quantitative study of some sources of uncertainty in opacity measurements. (arXiv:2001.03559v1 [physics.plasm-ph])
<a href="http://arxiv.org/find/physics/1/au:+Pain_J/0/1/0/all/0/1">Jean-Christophe Pain</a>, <a href="http://arxiv.org/find/physics/1/au:+Gilleron_F/0/1/0/all/0/1">Franck Gilleron</a>

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.

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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