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Monoenergetic electron parameters in a spheroid bubble model
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作者 h.sattarian Sh.Rahmatallahpur T.Tohidi 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第2期347-351,共5页
A reliable analytical expression for the potential of plasma waves with phase velocities near the speed of light is derived.The presented spheroid cavity model is more consistent than the previous spherical and ellips... A reliable analytical expression for the potential of plasma waves with phase velocities near the speed of light is derived.The 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 region.The 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 model.The 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 conditions.As a result,the quasi-mono-energetic electron output beam interacting with the laser plasma can be more appropriately described with this model. 展开更多
关键词 quasi-mono-energetic electron bunches intense laser plasma accelerator laser wake field bubble regime
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