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arXiv · 2309.16165

Proton deflectometry analysis in magnetized plasmas: magnetic field reconstruction in one dimension

W. Fox·G. Fiksel·D. B. Schaeffer·J. Griff-McMahon
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Abstract

Proton deflectometry is increasingly used in magnetized high-energy-density plasmas to observe electromagnetic fields. We describe a reconstruction algorithm to recover the electromagnetic fields from proton fluence data in 1-D. The algorithm is verified against analytic solutions and applied to example data. Secondly, we study the role of source fluence uncertainty for 1-D reconstructions. We show that reconstruction boundary conditions can be used to constrain the source fluence profile, and use this to develop a reconstruction using a specified pair of boundary conditions on the magnetic field. From these considerations we experimentally demonstrate a hybrid mesh-fluence reconstruction technique where fields are reconstructed from fluence data in an interior region with boundary conditions supplied by direct mesh measurements at the boundary.

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W. Fox, G. Fiksel, D. B. Schaeffer, J. Griff-McMahon. 2023-09-28. Proton deflectometry analysis in magnetized plasmas: magnetic field reconstruction in one dimension. https://doi.org/10.1103/physreve.110.015206

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