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Fourth Generation X-Ray Sources and Optics II
We describe the design concepts for a potential future source of femtosecond x-ray pulses based on synchrotron radiation production in a recirculating electron linac. Using harmonic cascade free-electron lasers (FEL's) and spontaneous emission in short-period, narrow-gap insertion devices, a broad range of photon energies are available with tunability from EUV to hard x-ray regimes. Photon pulse durations are controllable and range from 10 fs to 200 fs, with fluxes 10 7 -10 12 photons perdoi:10.1117/12.555946 fatcat:5fh7ia4c35fifagwhdptpghtgy