Optical afterburner for an X-ray FEL as a tool for ... - European XFEL
Optical afterburner for an X-ray FEL as a tool for ... - European XFEL
Optical afterburner for an X-ray FEL as a tool for ... - European XFEL
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Adv<strong>an</strong>tages:<br />
FXE Workshop, Budapest, 9 Dec. 2009<br />
E.L. Saldin, E.A. Schneidmiller, M.V. Yurkov<br />
Chaotic versus periodic modulations<br />
• Cheap <strong>an</strong>d robust method<br />
• Pulse width the same <strong>as</strong> that of SASE pulse, perfect timing<br />
down to sub-fs <strong>for</strong> hard x-<strong>ray</strong>s<br />
• Wider spectral r<strong>an</strong>ge available<br />
• On-line monitoring of SASE pulse width possible<br />
Disadv<strong>an</strong>tages:<br />
• Less power (in c<strong>as</strong>e of undulator)<br />
• Intrinsic shot-to-shot fluctuations of pulse energy<br />
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