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18 papers · 2 filters
Electron and Ion Heating during Magnetic Reconnection in Weakly Collisional Plasmas
Ryusuke Numata, Nuno F. Loureiro
Gyrokinetic simulations of magnetic reconnection are presented to investigate plasma heating for strongly magnetized, weakly collisional plasmas. For a low plasma beta case, parall…
A robust plasma-based laser amplifier via stimulated Brillouin scattering
Paulo Alves, Raoul Trines, Kathryn Humphrey +6
It is shown here that Brillouin amplification can be used to produce picosecond pulses of petawatt power. Brillouin amplification is far more resilient to fluctuations in the laser…
Energetic particle instabilities in fusion plasmas
S E Sharapov, B Alper, H L Berk +41
Remarkable progress has been made in diagnosing energetic particle instabilities on present-day machines and in establishing a theoretical framework for describing them. This overv…
Impact of nitrogen seeding on confinement and power load control of a high-triangularity JET ELMy H-mode plasma with a metal wall
C Giroud, G P Maddison, S Jachmich +39
This paper reports the impact on confinement and power load of the high-shape 2.5MA ELMy H-mode scenario at JET of a change from an all carbon plasma facing components to an all me…
Exploiting multi-scale parallelism for large scale numerical modelling of laser wakefield accelerators
Ricardo A. Fonseca, Jorge Vieira, Frederico Fiúza +4
A new generation of laser wakefield accelerators, supported by the extreme accelerating fields generated in the interaction of PW-Class lasers and underdense targets, promises the…
Conditions for up-down asymmetry in the core of tokamak equilibria
Paulo Rodrigues, Nuno F. Loureiro, Justin Ball +1
A local magnetic equilibrium solution is sought around the magnetic axis in order to identify the key parameters defining the magnetic-surface's up-down asymmetry in the core of to…