Proton deflectometry analysis in magnetized plasmas: magnetic field reconstruction in one dimension
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.
Keywords
Cite
@article{arxiv.2309.16165,
title = {Proton deflectometry analysis in magnetized plasmas: magnetic field reconstruction in one dimension},
author = {W. Fox and G. Fiksel and D. B. Schaeffer and J. Griff-McMahon},
journal= {arXiv preprint arXiv:2309.16165},
year = {2024}
}
Comments
11 pages, 7 figures. To appear in Phys. Rev. E (2024). For code library, see: https://github.com/wrfox/PRADICAMENT