Enhanced relativistic-electron-beam energy loss in warm dense aluminum

Vaisseau, X. and Debayle, A. and Honrubia, J. J. and Hulin, S. and Morace, A and Nicolai, Ph. and Sawada, H. and Vauzour, B. and Batani, D. and Beg, F. N. and Davies, J. R. and Fedosejevs, R and Gray, R. J. and Kemp, G E and Kerr, S and Li, K and Link, A and McKenna, P. and McLean, H S and Mo, M and Neely, David and Patel, P K and Park, J and Peebles, J and Rhee, Y J and Sorokovikova, A and Tikhonchuk, V. T. and Volpe, L. and Wei, M and Santos, J. J. (2015) Enhanced relativistic-electron-beam energy loss in warm dense aluminum. Physical Review Letters. 095004. ISSN 0031-9007

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    Energy loss of relativistic electron beams in warm-dense aluminum is measured in the regime of ultra-high electron beam current density over 2x10^11 A/cm2 (time-averaged). The samples are heated by shock compression. Comparing to undriven cold-solid ones, the roles of the different initial resistivity and of the transient resistivity (upon target heating during electron transport) are directly highlighted by the experimental data, reproduced by a comprehensive set of simulations, describing the hydrodynamics of the shock compression, and electron beam generation and transport. We measured a 16% increase in electron resistive energy loss in warm-dense compared to cold-solid samples of identical areal mass.

    ORCID iDs

    Vaisseau, X., Debayle, A., Honrubia, J. J., Hulin, S., Morace, A, Nicolai, Ph., Sawada, H., Vauzour, B., Batani, D., Beg, F. N., Davies, J. R., Fedosejevs, R, Gray, R. J. ORCID logoORCID: https://orcid.org/0000-0003-0610-9595, Kemp, G E, Kerr, S, Li, K, Link, A, McKenna, P. ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, McLean, H S, Mo, M, Neely, David, Patel, P K, Park, J, Peebles, J, Rhee, Y J, Sorokovikova, A, Tikhonchuk, V. T., Volpe, L., Wei, M and Santos, J. J.;