Laser acceleration of ions: recent results and prospects for applications

Bychenkov, V. Yu.; Brantov, A. V.; Govras, E. A.; Kovalev, V. F.

doi:10.3367/ufne.0185.201501f.0077

Cited by 21 publications

(9 citation statements)

References 56 publications

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“…Non-neutral plasma systems arise in a variety of physical contexts ranging from astrophysics [1][2][3]; accelerator technologies [4][5][6][7]; ion and neutron production [8][9][10][11][12][13]; sources for electron and ion microscopy [14,15]; to high power vacuum electronics [16][17][18]. Understanding of the dynamics of spreading of such systems is critical to the design of next generation technologies, and simple analytic models are particularly helpful for instrument design.…”

Section: Introductionmentioning

confidence: 99%

Dynamical bunching and density peaks in expanding Coulomb clouds

Zerbe

Xiang

Ruan

et al. 2018

Phys. Rev. Accel. Beams

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Expansion dynamics of single-species, non-neutral clouds, such as electron bunches used in ultrafast electron microscopy, show novel behavior due to high acceleration of particles in the cloud interior. This often leads to electron bunching and dynamical formation of a density shock in the outer regions of the bunch. We develop analytic fluid models to capture these effects, and the analytic predictions are validated by PIC and N-particle simulations. In the space-charge dominated regime, two and three dimensional systems with Gaussian initial densities show bunching and a strong shock response, while one dimensional systems do not; moreover these effects can be tuned using the initial particle density profile and velocity chirp.

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Section: Introductionmentioning

confidence: 99%

Dynamical bunching and density peaks in expanding Coulomb clouds

Zerbe

Xiang

Ruan

et al. 2018

Phys. Rev. Accel. Beams

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“…This sheath is formed by hot electrons accelerated to relativistic energies by a laser field at the front surface of the target. One of the main problems of the scheme is its low efficiency [5]. Recently, it has been suggested to use a surface grating on the irradiated size of the target to increase the laser-electron coupling and therefore increase the amount of energy transferred from the laser radiation to the ions [34].…”

Section: Problem Statementmentioning

confidence: 99%

“…This is valuable for both fundamental research in the physics of matter in extreme conditions and various applications. The noteworthy directions are the following: laserdriven electron acceleration to ultrarelativistic energies [3]; acceleration of ion beams to tens and hundreds MeV/nucleon [4,5]; generation of X-ray and gamma radiation, including pulses of attoand zeptosecond duration [6]; quantum electrodynamics effects in ultrahigh intensity fields, namely electron-positron pair production and the nonlinear optics of the vacuum [7,8]. The applications are fast ignition of inertial confinement fusion targets [9], hadron therapy for cancer treatment [10], protonography, X-ray imaging [11], etc.…”

Section: Introductionmentioning

confidence: 99%

Particle-in-Cell laser-plasma simulation on Xeon Phi coprocessors

Surmin

Bastrakov

Efimenko

et al. 2016

Computer Physics Communications

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a b s t r a c tThis paper concerns the development of a high-performance implementation of the Particle-in-Cell method for plasma simulation on Intel Xeon Phi coprocessors. We discuss the suitability of the method for Xeon Phi architecture and present our experience in the porting and optimization of the existing parallel Particle-in-Cell code PICADOR. Direct porting without code modification gives performance on Xeon Phi close to that of an 8-core CPU on a benchmark problem with 50 particles per cell. We demonstrate step-by-step optimization techniques, such as improving data locality, enhancing parallelization efficiency and vectorization leading to an overall 4.2× speedup on CPU and 7.5× on Xeon Phi compared to the baseline version. The optimized version achieves 16.9 ns per particle update on an Intel Xeon E5-2660 CPU and 9.3 ns per particle update on an Intel Xeon Phi 5110P. For a real problem of laser ion acceleration in targets with surface grating, where a large number of macroparticles per cell is required, the speedup of Xeon Phi compared to CPU is 1.6×.

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“…where ω B = qB/mc. The zero approximation with respect to the small parameter (15) corresponds to neglecting the right-hand side in (2). Then in this approximation we have v…”

Section: Classical Dynamicsmentioning

confidence: 99%

“…Modern laser methods for accelerating charged particles make it possible to effectively control the parameters of the movement of these particles [1][2][3][4]. Propagating in a medium, fast particles cause its ionization, which is accompanied by the intense losses of the energy.…”

Section: Introductionmentioning

confidence: 99%

Quasi-classical dynamics of a charged particle under conditions of ionization losses in a weak magnetic field

Sazonov

2024

Laser Phys. Lett.

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The quasi-classical dynamics of a charged particle in a weak magnetic field in the presence of dissipative losses caused by ionization of the medium is studied. The approximate approach proposed here is a generalization of the Caldirola—Kanai method for quantizing the translational motion of particles in dissipative media. It is shown that a weak curvature of a classical trajectory by the magnetic field is accompanied by an isotropic increase of uncertainty of the particle coordinates to the some maximum value at the moment the localized probability density wave packet stops. The limitation of the increase of coordinate uncertainty is due to irreversible ionization losses.

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Laser acceleration of ions: recent results and prospects for applications

Cited by 21 publications

References 56 publications

Dynamical bunching and density peaks in expanding Coulomb clouds

Dynamical bunching and density peaks in expanding Coulomb clouds

Particle-in-Cell laser-plasma simulation on Xeon Phi coprocessors

Quasi-classical dynamics of a charged particle under conditions of ionization losses in a weak magnetic field

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