Occurrence of Accelerating Field, Formation and Dynamics of Relativistic Electron Beam Near Jupiter

Maslov, V. A.; Levchuk, Iryna; Nikonova, S.; Onishchenko, I.N.

doi:10.26565/2312-4334-2018-2-11

Cited by 7 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…λ is the laser pulse wavelength. The computational time interval is τ = 0.05, the number of particles per cell is 8 and the total number of particles is 15.96×10 6 . The simulation of considered case was carried out up to 800 laser periods.…”

Section: Parameters Of Simulationmentioning

confidence: 99%

“…Plasma can provide much more accelerating electric field which is approximately in 10 3 times larger than possible in metal cavities of conventional accelerators [1]. As plasma in experiment is inhomogeneous and nonstationary and properties of wakefield changes at increase of its amplitude it is difficult to excite wakefield resonantly by a long sequence of electron bunches [2,3], to focus sequence [4][5][6][7][8], to prepare sequence from long beam [9][10][11] and to provide large transformer ratio [13][14][15][16][17][18]. In [4] the mechanism has been found and in [19][20][21][22] investigated of resonant plasma wakefield excitation by a nonresonant sequence of short electron bunches.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Improvement of Properties of Self-Injected and Accelerated Electron Bunch by Laser Pulse in Plasma, Using Pulse Precursor

Maslov

Bondar

Levchuk

et al. 2019

EEJP

View full text Add to dashboard Cite

The accelerating gradients in conventional linear accelerators are currently limited to ~100 MV/m. Plasma-based accelerators have the ability to sustain accelerating gradients which are several orders of magnitude greater than that obtained in conventional accelerators. Due to the rapid development of laser technology the laser-plasma-based accelerators are of great interest now. Over the past decade, successful experiments on laser wakefield acceleration of electrons in the plasma have confirmed the relevance of this acceleration. Evidently, the large accelerating gradients in the laser plasma accelerators allow to reduce the size and to cut the cost of accelerators. Another important advantage of the laser-plasma accelerators is that they can produce short electron bunches with high energy. The formation of electron bunches with small energy spread was demonstrated at intense laser–plasma interactions. Electron self-injection in the wake-bubble, generated by an intense laser pulse in underdense plasma, has been studied. With newly available compact laser technology one can produce 100 PW-class laser pulses with a single-cycle duration on the femtosecond timescale. With a fs intense laser one can produce a coherent X-ray pulse. Prof. T. Tajima suggested utilizing these coherent X-rays to drive the acceleration of particles. When such X-rays are injected into a crystal they interact with a metallic-density electron plasma and ideally suit for laser wakefield acceleration. In numerical simulation of authors, performed according to idea of Prof. T.Tajima, on wakefield excitation by a X-ray laser pulse in a metallic-density electron plasma the accelerating gradient of several TV/m has been obtained. It is important to form bunch with small energy spread and small size. The purpose of this paper is to show by the numerical simulation that some precursor-laser-pulse, moved before the main laser pulse, controls properties of the self-injected electron bunch and provides at certain conditions small energy spread and small size of self-injected and accelerated electron bunch.

show abstract

Section: Parameters Of Simulationmentioning

confidence: 99%

mentioning

confidence: 99%

Improvement of Properties of Self-Injected and Accelerated Electron Bunch by Laser Pulse in Plasma, Using Pulse Precursor

Maslov

Bondar

Levchuk

et al. 2019

EEJP

View full text Add to dashboard Cite

show abstract

“…The so-called electric double layers [14][15][16][17][18][19][20][21] are known to play an important role in the processes running in the magnetospheres of planets. The double electric layer is a plasma region with a violated quasineutrality.…”

Section: Influence Of the Acceleration On The Csr Criterionmentioning

confidence: 99%

Role of Double Layers in the Formation of Conditions for a Polarization Phase Transition to the Superradiancestate in the Io Flux Tube

Novak¹,

Kholodov²,

Fomina³

2018

Ukr. J. Phys.

View full text Add to dashboard Cite

A possibility of the electron phase transition into cyclotron superradiance mode in a vicinity of the Io flux tube foot in the Jovian magnetosphere has been considered. A high power of cyclotron superradiance allows it to be considered as the main mechanism of decameter Jupiter radiation generation in the form of S-bursts. It was found that the downward electron beams emitted by Io are able to create electric double layers in the form of shock waves. Such waves, when moving along the flux tube, accelerate electrons in the magnetosphere. As a result, the temperature of the electron plasma component decreases considerably. The emerging upward electron beams create conditions favorable for the phase transition into the cyclotron superradiance mode to take place. K e y w o r d s: magnetosphere, superradiance, double layer, plasma.

show abstract

“…In [24,25], it was shown that when an electron beam from Io enters Jupiter's ionosphere, a beamplasma instability (BPI) develops. The electron distribution function becomes wider due to the excited fields, and then these electrons cause the ultraviolet aurora.…”

Section: Introductionmentioning

confidence: 99%

Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

et al. 2021

View full text Add to dashboard Cite

We investigate the formation of vortex structures at the refl ection of an electron beam from the double layer of the Jupiter ionosphere. The infl uence of these vortex structures on the formation of dense upward electron fl uxes accelerated by the double layer potential along the Io flux tube is studied. The phase transition to the cyclotron superradiance mode becomes possible for these electrons. The conditions of the formation of vortex perturbations are considered. The nonlinear equation that describes the vortex dynamics of electrons is constructed, and its consequences are studied.

show abstract

Occurrence of Accelerating Field, Formation and Dynamics of Relativistic Electron Beam Near Jupiter

Cited by 7 publications

References 13 publications

Improvement of Properties of Self-Injected and Accelerated Electron Bunch by Laser Pulse in Plasma, Using Pulse Precursor

Improvement of Properties of Self-Injected and Accelerated Electron Bunch by Laser Pulse in Plasma, Using Pulse Precursor

Role of Double Layers in the Formation of Conditions for a Polarization Phase Transition to the Superradiancestate in the Io Flux Tube

Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

Contact Info

Product

Resources

About