Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Walczak, Roman"'
We investigate the accelerator stage of a Plasma-Modulated Plasma Accelerator (P-MoPA) [Phys. Rev. Lett. 127, 184801 (2021)] using both the paraxial wave equation and particle-in-cell (PIC) simulations. We show that adjusting the laser and plasma par
Externí odkaz:
http://arxiv.org/abs/2311.00471
Autor:
Ross, Aimee J., Chappell, James, van de Wetering, Johannes J., Cowley, James, Archer, Emily, Bourgeois, Nicolas, Corner, Laura, Emerson, David R., Feder, Linus, Gu, Xiao J., Jakobsson, Oscar, Jones, Harry, Picksley, Alexander, Reid, Linus, Wang, Wei-Ting, Walczak, Roman, Hooker, Simon M.
Publikováno v:
Physical Review Research vol. 6, L022001 (2024)
We demonstrate resonant excitation of a plasma wave by a train of short laser pulses guided in a pre-formed plasma channel, for parameters relevant to a plasma-modulated plasma accelerator (P-MoPA). We show experimentally that a train of $N \approx 1
Externí odkaz:
http://arxiv.org/abs/2310.05097
We explore the regime of operation of the modulator stage of a recently proposed laser-plasma accelerator scheme [Phys. Rev. Lett. 127, 184801 (2021)], dubbed the Plasma-Modulated Plasma Accelerator (P-MoPA). The P-MoPA scheme offers a potential rout
Externí odkaz:
http://arxiv.org/abs/2303.14032
Publikováno v:
Physical Review E vol. 107, L023201 (2023)
We investigate the growth of ion density perturbations in large-amplitude linear laser wakefields via two-dimensional particle-in-cell simulations. Growth rates and wave numbers are found to be consistent with a longitudinal strong-field modulational
Externí odkaz:
http://arxiv.org/abs/2303.07723
The intrinsic constraints in the amplitude of the accelerating fields sustainable by radio-frequency accelerators demand for the pursuit of alternative and more compact acceleration schemes. Among these, plasma-based accelerators are arguably the mos
Externí odkaz:
http://arxiv.org/abs/1806.02633
Autor:
Walker, Paul Andreas, Assmann, Ralph Wolfgang, Brinkmann, Reinhard, Chiadroni, Enrica, Dorda, Ulrich, Ferrario, Massimo, Kocon, Dariusz, Marchetti, Barbara, Pribyl, Lukas, Specka, Arnd, Walczak, Roman
The Horizon 2020 Project EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) is preparing a conceptual design for a highly compact and cost-effective European facility with multi-GeV electron beams using plasma as the acce
Externí odkaz:
http://arxiv.org/abs/1802.00293
Autor:
Shalloo, Robert, Arran, Christopher, Corner, Laura, Holloway, James, Jonnerby, Jakob, Walczak, Roman, Milchberg, Howard, Hooker, Simon
Publikováno v:
Phys. Rev. E 97, 053203 (2018)
We present experiments and numerical simulations which demonstrate that fully-ionized, low-density plasma channels could be formed by hydrodynamic expansion of plasma columns produced by optical field ionization (OFI). Simulations of the hydrodynamic
Externí odkaz:
http://arxiv.org/abs/1801.00695
Autor:
Cowley, James, Thornton, Christopher, Arran, Christopher, Shalloo, Robert J., Corner, Laura, Cheung, Gavin, Gregory, Christopher D., Mangles, Stuart P. D., Matlis, Nicholas H., Symes, Daniel R., Walczak, Roman, Hooker, Simon M.
Publikováno v:
Physical Review Letters 119, 044802 (2017)
We demonstrate experimentally the resonant excitation of plasma waves by trains of laser pulses. We also take an important first step to achieving an energy recovery plasma accelerator by showing that unused wakefield energy can be removed by an out-
Externí odkaz:
http://arxiv.org/abs/1708.04206
A summary of new experimental results and recent theoretical developments discussed in the "Hadronic Final States and QCD" working group is presented.
Comment: 16 pages, working group summary at Workshop on 'Deep Inelastic Scattering and Related
Comment: 16 pages, working group summary at Workshop on 'Deep Inelastic Scattering and Related
Externí odkaz:
http://arxiv.org/abs/0808.2616
Externí odkaz:
https://doi.org/10.1093/acprof:oso/9780198748557.001.0001