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Electron transport in plasma.

COXINEL transport of laser plasma accelerated electrons

COXINEL transport of laser plasma accelerated electrons

... Introduction In Laser Plasma Acceleration (LPA) [1], an ultra short laser pulse generates a plasma wave with relativistic phase velocity via the ponderomotive ...accelerators, in a range ...

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Joint diffusivity and source estimation in tokamak plasma heat transport

Joint diffusivity and source estimation in tokamak plasma heat transport

... source identification in the electron heat transport model. This phenomenon is described by a second-order parabolic differential equation with distributed diffusion parameter and input. Once ...

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Self-consistent cross-field transport model for core and edge plasma transport

Self-consistent cross-field transport model for core and edge plasma transport

... turbulent transport throughout the ...recovered in L-mode simulations of TCV and ...core plasma as well as self consistent transitions to im- proved confinement ...analyzed in the paper, the ...

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Modeling of plasma transport and negative ion extraction in a magnetized radio-frequency plasma source

Modeling of plasma transport and negative ion extraction in a magnetized radio-frequency plasma source

... high plasma densities and large volume of the negative ion ...discussed in this paper how simulations performed under conditions of smaller plasma densities (‘scaling’), although not ‘exact’, can ...

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Interpretative transport modeling of the WEST boundary plasma: main plasma and light impurities

Interpretative transport modeling of the WEST boundary plasma: main plasma and light impurities

... corresponding electron forces (dashed lines) have similar trends but are characterised by values smaller by one order of ...is in favour of the thermal gradient forces at both divertor targets but it is ' 3 ...

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Modélisation fluide du transport et des instabilités dans une source plasma froid magnétisé

Modélisation fluide du transport et des instabilités dans une source plasma froid magnétisé

... plasmas in devices such as Hall thrusters and ion sources often show the emergence of instabilities that can cause anomalous transport phenomena and strongly affect the device ...operation. In this ...

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Impact of negative triangularity on edge plasma transport and turbulence in TOKAM3X simulations

Impact of negative triangularity on edge plasma transport and turbulence in TOKAM3X simulations

... the plasma being able to be heated to reactor relevant condi- tions without the potential critical damages caused by ...of electron heat transport with negative triangularity. In particu- lar, ...

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Magnetic field in laser plasmas : non-local electron transport and reconnection

Magnetic field in laser plasmas : non-local electron transport and reconnection

... model. In order to do so, we presented the results of an experiment performed at JLF-Titan, before this thesis, side by side with the post- processed results of FCI2 simulations corresponding to each ...of ...

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Adaptive Distributed Parameter and Input Estimation in Plasma Tokamak Heat Transport

Adaptive Distributed Parameter and Input Estimation in Plasma Tokamak Heat Transport

... to plasma heat transport but arises more generally in fault detection and inverse ...The electron heat transport model and the framework of our PDE problem are presented in ...

7

Turbulent particle transport in magnetized fusion plasma

Turbulent particle transport in magnetized fusion plasma

... presented in [4], 2D simulations in [2], computed particle trajectories in [mis], quasi-linear approach in [9] and 3D fluid model with a complementary analytical analysis in ...

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Progress Towards Laser Plasma Electron Based Free Electron Laser on COXINEL

Progress Towards Laser Plasma Electron Based Free Electron Laser on COXINEL

... with plasma up to several GeV within ultra-short distances [14–16] with kA peak curren- t, ultra-short bunches, 1π ...degradation in the transfer ...the electron source, with for instance high ...

5

On the validity of the local diffusive paradigm in turbulent plasma transport

On the validity of the local diffusive paradigm in turbulent plasma transport

... summarized in Table I , in which self-organization is present at all scales yet mani- fests itself differently at different scales; its most prominent feature being arguably the dynamical emergence of the ...

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Electron Beam Brightness and Undulator Radiation Brilliance for a Laser Plasma Acceleration Based Free Electron Laser

Electron Beam Brightness and Undulator Radiation Brilliance for a Laser Plasma Acceleration Based Free Electron Laser

... energies. In the case of an LPA beam, a typical gradient of > 100 T/m is ...compact in order to achieve a high gradient which poses a mechanical ...come in handy for such applications but they are ...

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One-dimensional electron transport layers for perovskite solar cells

One-dimensional electron transport layers for perovskite solar cells

... used in photovoltaics, taking the form of familiar structures such as rods, tubes, and wires, possess two dimensions of a size between 1 and 100 nm while the third dimension is typically in the range 200 ...

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Combined distributed parameters and source estimation in tokamak plasma heat transport

Combined distributed parameters and source estimation in tokamak plasma heat transport

... estimation in tokamak plasma heat transport Sarah Mechhoud 1 , Emmanuel Witrant 1 , Luc Dugard 1 and Didier Moreau 2 Abstract— : We investigate the joint estimation of time and space distributed ...

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Electron-Only Reconnection in Plasma Turbulence

Electron-Only Reconnection in Plasma Turbulence

... reconnection in plasma turbulence, potentially explaining the MMS results. In particular, if some energy-injection mechanism with properties similar to those employed in our simulations occurs ...

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Linear stability of magnetic vortex chains in a plasma in the presence of equilibrium electron temperature anisotropy

Linear stability of magnetic vortex chains in a plasma in the presence of equilibrium electron temperature anisotropy

... vortices in a plasma is investigated analytically in two dimensions by means of a reduced fluid model assuming a strong guide field and accounting for equilibrium electron temperature ...and ...

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Positron beam extraction from an electron-beam-driven plasma wakefield accelerator

Positron beam extraction from an electron-beam-driven plasma wakefield accelerator

... open-ended. In the proposed experiment, the positrons are produced by passing the electron bunches through a high-Z foil which blocks the upstream plasma ...the plasma entrance. At the ...

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High-repetition-rate relativistic electron acceleration in plasma wakefields driven by few-cycle laser pulses

High-repetition-rate relativistic electron acceleration in plasma wakefields driven by few-cycle laser pulses

... presented in this thesis is the outcome of collective work of many team ...used in all the described experiments, introducing numerous highly innovative solutions on the ...work in practice, always ...

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ANOMALOUS ELECTRON HEAT-TRANSPORT DRIVEN BY LOW-FREQUENCY ELECTROMAGNETIC TURBULENCE

ANOMALOUS ELECTRON HEAT-TRANSPORT DRIVEN BY LOW-FREQUENCY ELECTROMAGNETIC TURBULENCE

... In this Letter we show that while electron transport is indeed determined by ion transport because of quasineu- trality, there can nevertheless be a significant electron parallel and per[r] ...

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