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Monoenergetic electron parameters in a spheroid bubble model

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Chinese Physics B 2013年第2期22卷 347-351页

作者： H.Sattarian Sh.Rahmatallahpur T.Tohidi Maraghe Branch Physics DepartmentIslamic Azad UniversityMaraghehIran Bonab Branch Physics DepartmentIslamic Azad UniversityBonabIran Department of Physics Azarbaijan University of Tarbiat MoallemTabrizIran

A reliable analytical expression for the potential of plasma waves with phase velocities near the speed of light is *** presented spheroid cavity model is more consistent than the previous spherical and ellipsoidal models and it explains the mono-energetic electron trajectory more accurately,especially at the relativistic *** maximum energy of electrons is calculated and it is shown that the maximum energy of the spheroid model is less than that of the spherical *** electron energy spectrum is also calculated and it is found that the energy distribution ratio of electrons △E/E for the spheroid model under the conditions reported here is half that of the spherical model and it is in good agreement with the experimental value in the same *** a result,the quasi-mono-energetic electron output beam interacting with the laser plasma can be more appropriately described with this model.

关键词： quasi-mono-energetic electron bunches intense laser plasma accelerator laser wake field bubble regime

Results of the Main Phase of Ion Separation in the Process of plasma-Optical Mass Separation

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plasma Science and Technology 2015年第10期17卷 862-868页

作者： V.M.BARDAKOV S.D.IVANOV A.V.KAZANTSEV N.A.STROKIN Institute for Physics and Technology Irkutsk State Technical University

This paper presents separation results of a mixture of nitrogen, argon and krypton ions in the process of plasma-optical mass separation on the POMS-E-3 separator model. We determined the behavior of the separation with a change in the value of magnetic field induction in the azimuthator and in the degree of compensation of the spatial charge in ion flows. An analysis is performed for experimental data by correlation with the results of a theoretical study and numerical experiments. The objectives of future experiments are outlined.

关键词： plasma-optical mass separation plasma accelerator trajectories spatial charge

Electron trajectory evaluation in laser-plasma interaction for effective output beam

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Chinese Physics B 2010年第6期19卷 344-348页

作者： P. Zobdeh R. Sadighi-Bonabi H. Afarideh Department of Physics Qom Branch Islamic Azad University Qom Iran Department of Physics Sharif University of Technology 11365-9567 Tehran Iran Department of Physics Amirkabir University of Technology Tehran Iran

Using the ellipsoidal cavity model, the quasi-monoenergetic electron output beam in laser-plasma interaction is described. By the cavity regime the quality of electron beam is improved in comparison with those generated from other methods such as periodic plasma wave field, spheroidal cavity regime and plasma channel guided acceleration. Trajectory of electron motion is described as hyperbolic, parabolic or elliptic paths. We find that the self-generated electron bunch has a smaller energy width and more effective gain in energy spectrum. Initial condition for the ellipsoidal cavity is determined by laser-plasma parameters. The electron trajectory is influenced by its position, energy and cavity electrostatic potential.

关键词： electron intense laser plasma accelerator laser wake field bubble regime wave breaking