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Towards Proton Tomography of Laser-Plasma Interactions

ORAL

Abstract

Proton radiography, similarly to many diagnostics, probes a plasma in a line-integrated fashion.

Analytical techniques for proton radiographs have advanced significantly in recent years and reliable

recovery of integrated deflections is now possible, along with separation of the electric and magnetic

fields’ contributions to those deflections. Here, we propose the application of tomographic methods

to the proton radiography diagnostic and present two pre-processing stages which vastly improve

the performance of standard tomographic algorithms in the limit of very few probe directions and

highly elongated field structures respectively. These methods improve the practical applicability of

common tomographic algorithms to proton radiography and therefore the feasibility of deducing

three-dimensional magnetic field structures in plasma.

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Publication: https://arxiv.org/abs/2103.11266 "Methods for Extremely Sparse-Angle Proton Tomography"

Presenters

  • Ben T Spiers

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

Authors

  • Ben T Spiers

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Ramy Aboushelbaya

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Qingsong Feng

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Marko W Mayr

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Iustin Ouatu

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Robert W Paddock

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Robin Timmis

    University of Oxford, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

  • Robin Wang

    University of Oxford

  • Peter A Norreys

    Rutherford Appleton Lab, Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom; Central Laser Facility