Joe Frisch: Synchrotron radiation sources and free ... - Conferences
Joe Frisch: Synchrotron radiation sources and free ... - Conferences
Joe Frisch: Synchrotron radiation sources and free ... - Conferences
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Slippage <strong>and</strong> Pulse Lengths<br />
• Slippage: Each undulator period the electrons slip by one wavelength relative to<br />
the X-rays.<br />
– A single electron would produce an X-ray pulse with the same number of wavelengths as are<br />
in the undulator.<br />
– Coherence length is the number of X-ray wavelengths in a ~2 gain lengths, L c 7fs pulse.<br />
Can’t directly measure, but have<br />
indirect evidence of
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