Showing papers in "Physical review accelerators and beams in 2014"
TL;DR: In this article, the Coulomb force exerted on the high energy electron bunch by the low energy bunch will kick a very short ($\ensuremath{\sim}20\text{ }\mathrm{MeV}$) slice from the core of the high electron bunch, which can generate ultrashort x-ray pulse.
Abstract: When a low energy electron bunch ($\ensuremath{\sim}20\text{ }\mathrm{MeV}$) crosses from top of a high energy bunch (e.g., 3 GeV) at an angle (e.g., 45\ifmmode^\circ\else\textdegree\fi{}), the Coulomb force exerted on the high energy bunch by the low energy bunch will kick a very short ($\ensuremath{\sim}150\text{ }\text{ }\mathrm{fs}$) slice from the core of the high energy bunch. The slice of electron bunch can generate ultrashort x-ray pulse. In this paper, we will give analytical expressions about the angular kicks dependence on the crossing angle by assuming a Gaussian distribution for the low energy bunch. Applying the analytical results to the storage ring bunch in NSLS-II [1], we will discuss the optimized parameters of the electron beam slicing system in order to obtain a very short slice bunch and a sufficient separation between the slice and the core bunch.
2 citations