Short-pulse effect in self-amplified spontaneous emission

초록

The spatio-temporal evolution of self-amplified spontaneous emission(SASE) is investigated by using an analytical model and a simulation calculation. When we treat the short-pulse electron beam ina high-gain free-electron laser, the coherent bunched-beam effect, as well as the strong slippage effect, plays an important role in determining the performance of SASE. In this research, the extensive numerical calculations with a theoretical estimate of the short-pulse effect were made and the results were compared with the recent SASE experiments at Stanford University.

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