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Investigating the potential benefits of the use of magnetic fields in Inertial Confinement Fusion (ICF) experiments has given rise to new experimental platforms like the Magnetized Liner Inertial Fusion (MagLIF) approach at the Z-machine…

High intensity laser driven proton beams are at present receiving much attention. The reasons for this are many but high on the list is the potential to produce compact accelerators. However two of the limitations of this technology is that…

The effects of plasma ion motion in self-modulated plasma based accelerators is examined. An analytical model describing ion motion in the narrow beam limit is developed, and confirmed through multi-dimensional particle-in-cell simulations.…

Plasma Physics · Physics 2015-06-11 J. Vieira , R. A. Fonseca , W. B. Mori , L. O. Silva

We present measurements of ion velocity distribution profiles obtained by laser induced fluorescence (LIF) on an explosive laser produced plasma (LPP). The spatio-temporal evolution of the resulting carbon ion velocity distribution was…

Plasma Physics · Physics 2022-10-26 R. S. Dorst , C. G. Constantin , D. B. Schaeffer , J. J. Pilgram , C. Niemann

Two-fluid (electron-positron) plasma modelling has shown that inductive acceleration can convert Poynting flux directly into bulk kinetic energy in the relativistic flows driven by rotating magnetized neutron stars and black holes. Here, we…

High Energy Astrophysical Phenomena · Physics 2019-10-14 John G. Kirk , Gwenael Giacinti

Fast Ignition Inertial Confinement Fusion is a variant of inertial fusion in which DT fuel is first compressed to high density and then ignited by a relativistic electron beam generated by a fast (< 20 ps) ultra-intense laser pulse, which…

We consider injection and subsequent acceleration of electrons in narrow plasma channels irradiated by linearly and radially polarized ultraintense laser pulses. Using three-dimensional particle-in-cell simulations, we show that radially…

A pulse shape designer for direct drive inertial confinement fusion has been developed, it aims at high compression of the fusion fuel while keeping hydrodynamics instability within tolerable level. Fast linear analysis on implosion…

Plasma Physics · Physics 2023-02-10 Tao Tao , Guannan Zheng , Qing Jia , Rui Yan , Jian Zheng

We identify the desired characteristics and parameters of a beta>1 magnetized plasma, possibly with highly tangled, open field lines, that could be a suitable target to be compressed to fusion conditions by a spherically imploding plasma…

Plasma Physics · Physics 2020-04-01 Scott C. Hsu , Samuel J. Langendorf

A new mechanism is suggested for efficient proton acceleration in the GeV energy range; applications to non-conventional high intensity proton drivers and, hence, to low-energy (10-200 MeV) neutrino sources are discussed. In particular we…

High Energy Physics - Phenomenology · Physics 2014-11-17 S. V. Bulanov , T. Esirkepov , P. Migliozzi , F. Pegoraro , T. Tajima , F. Terranova

A new concept is proposed for accelerating positrons in a nonlinear plasma wakefield accelerator. By loading the wakefield (back of the plasma bubble) with a short electron bunch, an extended area of excessive plasma electron accumulation…

Plasma Physics · Physics 2021-10-22 Tianhong Wang , Vladimir Khudik , Gennady Shvets

The nonlinear optical properties of a plasma due to the relativistic electron motion in an intense laser field are of fundamental importance for current research and the generation of brilliant laser-driven sources of particles and…

We study ion acceleration mechanisms in laser-plasma interactions using neutron spectroscopy. We consider different types of ion-collision mechanisms in the plasma, which cause the angular anisotropy of the observed neutron spectra. These…

Plasma Physics · Physics 2009-09-14 Sachie Kimura , Aldo Bonasera

The output pulses of a commercial high-power femtosecond fiber laser or amplifier are typically around 300-500 fs with a wavelength around 1030 nm and 10s of $\mu$J pulse energy. Here we present a numerical study of cascaded quadratic…

Optics · Physics 2011-09-21 Morten Bache , Frank W. Wise

Using two-dimensional particle-in-cell simulations, we examine how an externally applied strong magnetic impacts proton acceleration in laser-irradiated solid-density targets. We find that a kT-level external magnetic field can sufficiently…

Plasma Physics · Physics 2016-11-23 Alexey Arefiev , Toma Toncian , Gennady Fiksel

We attempt to explain the non-thermal emission arising from galaxy clusters as a result of the re-acceleration of electrons by compressible turbulence induced by cluster mergers. In our model intracluster medium (ICM) is represented by a…

Astrophysics · Physics 2008-11-26 G. Brunetti , A. Lazarian

We study the compression driven magnetic reconnection in the relativistic electron-positron plasma. Making use of a 2.5D particle-in-cell code, we simulated compression of a magnetized plasma layer containing a current sheet within it. We…

Astrophysics · Physics 2009-11-13 Yuri Lyubarsky , Michael Liverts

The construction of a novel user facility employing laser-driven plasma acceleration with superior beam quality will require an industrial grade, high repetition rate petawatt laser driver which is beyond existing technology. However, with…

Accelerator Physics · Physics 2018-12-26 L. A. Gizzi , P. Koester , L. Labate , F. Mathieu , Z. Mazzotta , G. Toci , M. Vannini

The creation of well-thermalized, hot and dense plasmas is attractive for warm dense matter studies. We investigate collisionally induced energy absorption of an ultraintense and ultrashort laser pulse in a solid copper target using…

Plasma Physics · Physics 2020-04-29 Andréas Sundström , Laurent Gremillet , Evangelos Siminos , István Pusztai

We report the existence of an enhanced operating regime for a high-frequency, low-pressure capacitively coupled plasma (CCP) discharge in the presence of a weak magnetic field applied parallel to the electrodes. Our PIC-MCC simulations show…

Plasma Physics · Physics 2020-12-07 Sanket Patil , Sarveshwar Sharma , Sudip Sengupta , Abhijit Sen , Igor Kaganovich
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