期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 6, 页码 1011-1014出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.1011
关键词
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A new scheme fur plasma electron injection into an acceleration phase of a plasma wake field is presented. In this scheme, a single, short electron pulse travels through an underdense plasma with a sharp, localized, downward density transition. Near this transition, a number of background plasma electrons are trapped in the plasma wake field, due to the rapid wavelength increase of the induced wake wave in this region. The viability of this scheme is verified using two-dimensional particle-in-cell simulations. To investigate the trapping and acceleration mechanisms further, a ID Hamiltonian analysis, as well as 1D simulations, has been performed, with the results presented and compared.
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