title: Dense plasma heating by crossing relativistic electron beams.
abstract: Here we investigate, using relativistic fluid theory and Vlasov-Maxwell simulations, the local heating of a dense plasma by two crossing electron beams. Heating occurs as an instability of the electron beams drives Langmuir waves, which couple nonlinearly into damped ion-acoustic waves. Simulations show a factor 2.8 increase in electron kinetic energy with a coupling efficiency of 18%. Our results support applications to the production of warm dense matter and as a driver for inertial fusion plasmas.
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.
authors.forename: N
authors.initials: N
authors.lastname: Ratan
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.|AWE plc. Aldermaston, Reading, Berkshire, RG7 4PR, United Kingdom.|Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom.
authors.forename: N J
authors.initials: NJ
authors.lastname: Sircombe
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.
authors.forename: L
authors.initials: L
authors.lastname: Ceurvorst
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Sadler
authors.affiliation: John Adams Institute, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom.
authors.forename: M F
authors.initials: MF
authors.lastname: Kasim
authors.affiliation: John Adams Institute, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Holloway
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.
authors.forename: M C
authors.initials: MC
authors.lastname: Levy
authors.affiliation: STFC Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom.
authors.forename: R
authors.initials: R
authors.lastname: Trines
authors.affiliation: STFC Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom.|Department of Physics, University of Strathclyde, Glasgow, G4 0NG, United Kingdom.
authors.forename: R
authors.initials: R
authors.lastname: Bingham
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom.|STFC Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom.
authors.forename: P A
authors.initials: PA
authors.lastname: Norreys