(MO-2-03) Presenting Author: L. -H. Yu
Juhao Wu (1,2), and Li Hua Yu (1)
1. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973-5000; 2. C.N. Yang Institute for Theoretical Physics, SUNY at Stony Brook, Stony Brook, NY 11794-3840
A new approach to produce coherent hard x-ray by cascading several stages of
High Gain Harmonic Generation (HGHG) is studied. Compared with Self-Amplified
Spontaneous Emission (SASE) scheme, this scheme could produce fully
longitudinally coherent radiation. Furthermore, the radiation produced by HGHG
scheme has a narrower bandwidth, more stable central wavelength, controllable
pulse length, and better stability. For the purpose of comparison, the
parameters of the electron bunches are the now available ones from DESY TTF
and SLAC LCLS project.