Retrieving fields from proton radiography without source profiles

M. F. Kasim, A. F. A. Bott, P. Tzeferacos, D. Q. Lamb, G. Gregori, and S. M. Vinko
Phys. Rev. E 100, 033208 – Published 24 September 2019

Abstract

Proton radiography is a technique in high-energy density science to diagnose magnetic and/or electric fields in a plasma by firing a proton beam and detecting its modulated intensity profile on a screen. Current approaches to retrieve the integrated field from the modulated intensity profile require the unmodulated beam intensity profile before the interaction, which is rarely available experimentally due to shot-to-shot variability. In this paper, we present a statistical method to retrieve the integrated field without needing to know the exact source profile. We apply our method to experimental data, showing the robustness of our approach. Our proposed technique allows for the retrieval not only of the path-integrated fields, but also of the statistical properties of the fields.

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  • Received 30 May 2019

DOI:https://doi.org/10.1103/PhysRevE.100.033208

©2019 American Physical Society

Physics Subject Headings (PhySH)

Plasma Physics

Authors & Affiliations

M. F. Kasim1,*, A. F. A. Bott1, P. Tzeferacos2, D. Q. Lamb2, G. Gregori1, and S. M. Vinko1

  • 1Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
  • 2Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave, Chicago, Illinois 60637, USA

  • *muhammad.kasim@physics.ox.ac.uk

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Vol. 100, Iss. 3 — September 2019

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