Oxford Centre for High Energy Density Science (OxCHEDS)

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Neutrino-electron magnetohydrodynamics in an expanding Universe

(2021)

Authors:

LM Perrone, G Gregori, B Reville, LO Silva, R Bingham
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Atomistic deformation mechanism of silicon under laser-driven shock compression

(2021)

Authors:

S Pandolfi, S Brennan Brown, PG Stubley, A Higginbotham, CA Bolme, HJ Lee, B Nagler, E Galtier, R Sandberg, W Yang, WL Mao, JS Wark, A Gleason
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An investigation of efficient muon production for use in muon catalyzed fusion

Journal of Physics: Energy IOP Publishing 3:3 (2021) 035003-035003

Authors:

R Spencer Kelly, Lucy JF Hart, Steven J Rose
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Strong suppression of heat conduction in a laboratory replica of galaxy-cluster turbulent plasmas

(2021)

Authors:

J Meinecke, P Tzeferacos, JS Ross, AFA Bott, S Feister, H-S Park, AR Bell, R Blandford, RL Berger, R Bingham, A Casner, LE Chen, J Foster, DH Froula, C Goyon, D Kalantar, M Koenig, B Lahmann, C-K Li, Y Lu, CAJ Palmer, R Petrasso, H Poole, B Remington, B Reville, A Reyes, A Rigby, D Ryu, G Swadling, A Zylstra, F Miniati, S Sarkar, AA Schekochihin, DQ Lamb, G Gregori
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Generating ultradense pair beams using 400 GeV/c protons

Physical Review Research American Physical Society 3 (2021) 023103

Authors:

CD Arrowsmith, N Shukla, N Charitonidis, R Boni, H Chen, T Davenne, Anthony Dyson, Dh Froula, JT Gudmundsson, Brian Huffman, Y Kadi, B Reville, S Richardson, S Sarkar, Jl Shaw, Lo Silva, P Simon, Rmgm Trines, R Bingham, G Gregori

Abstract:

An experimental scheme is presented for generating low-divergence, ultradense, relativistic, electron-positron beams using 400 GeV/c protons available at facilities such as HiRadMat and AWAKE at CERN. Preliminary Monte Carlo and particle-in-cell simulations demonstrate the possibility of generating beams containing 1013–1014 electron-positron pairs at sufficiently high densities to drive collisionless beam-plasma instabilities, which are expected to play an important role in magnetic field generation and the related radiation signatures of relativistic astrophysical phenomena. The pair beams are quasineutral, with size exceeding several skin depths in all dimensions, allowing the examination of the effect of competition between transverse and longitudinal instability modes on the growth of magnetic fields. Furthermore, the presented scheme allows for the possibility of controlling the relative density of hadrons to electron-positron pairs in the beam, making it possible to explore the parameter spaces for different astrophysical environments.
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