Approximate Analytical Description of the Underdense Short Plasma Lens
نویسنده
چکیده
The perturbative approach for describing the underdense plasma–ultrarelativistic electron bunch system is developed,using the ratio n0 nb as a small parameter (nb-bunch,n0plasma electron densities). Focusing of the electron bunch emerged in the first approximation of the perturbative procedure as a result of the plasma electrons redistribution.Focusing gradient and strength for ultrarelativistic,flat,uniform and short bunch are obtained and compared with the previous results. keywords:plasma focusing,underdense plasma lens,perturbative approach
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