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Abstract
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.
Original language | English |
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Article number | 095004 |
Number of pages | 6 |
Journal | Physical Review Letters |
Early online date | 4 Mar 2015 |
DOIs | |
Publication status | E-pub ahead of print - 4 Mar 2015 |
Keywords
- relativistic electron beams
- energy loss
- ultrahigh electron beam
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Projects
- 1 Finished
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Multi-PetaWatt Laser-Plasma Interactions: A New Frontier in Physics
McKenna, P. (Fellow)
EPSRC (Engineering and Physical Sciences Research Council)
1/03/12 → 28/02/17
Project: Research Fellowship