Simulation of the short-pulse effects in high-gain FELs starting from noise

초록

With one-dimensional time-dependent FEL equations, we have numerically investigated the spatio-temporal evolution of high-gain free-electron lasers starting from noise. Considering the effects of slippage, electron density profile, and the electron-beam energy spread, we describe the general features of the short-pulse SASE-FEL. Throughout the extensive simulation calculation, the scaling laws for the short-pulse SASE are presented for the prediction of the SASE performance in all wavelength regions. (C) 1998 Elsevier Science B.V. All rights reserved.

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