• Corpus ID: 54077066

EFFECT OF COULOMB COLLISIONS ON ECHO-ENABLED HARMONIC GENERATION (EEHG) ∗

@inproceedings{Stupakov2012EFFECTOC,
  title={EFFECT OF COULOMB COLLISIONS ON ECHO-ENABLED HARMONIC GENERATION (EEHG) ∗},
  author={Gennady Stupakov},
  year={2012}
}
We calculate the EEHG bunching factor with account of the collisions and derive a simple scaling relation for the strength of the effect. Our estimates show that collisions become a limiting factor in EEGH seeding for large har- monic numbers. Echo-enabled harmonic generation (EEHG) for FEL seeding usestwo undulator-modulatorsand two chicanesto introduce a fine structure into the beam longitudinal phase space which, at the end of the system, transforms into a high harmonic modulation of the… 

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References

SHOWING 1-10 OF 13 REFERENCES

EEHG Performance and Scaling Laws

This note will calculate the idealized performance of echo-enabled harmonic generation performance (EEHG), explore the parameter settings, and look at constraints determined by incoherent synchrotron

Beam debunching due to ISR-induced energy diffusion

Description of modulated beam dynamics

General formalism for describing dynamics of modulated beams along linear beamlines is developed. We describe modulated beams with spectral distribution function which represents Fourier transform of

Intrabeam Scattering in an X-ray FEL Driver

Intrabeam scattering (IBS) of a high-brightness electron beam in an x-ray free-electron laser (FEL) driver is studied. Such a beam is much ''colder'' in the longitudinal direction than in transverse

Classical theory of fields

The principle of relativity Relativistic mechanics Electromagnetic fields Electromagnetic waves The propagation of light The field of moving charges Radiation of electromagnetic waves Particle in a

L

  • Doolittle, et al., in Proceedings of the 2013 FEL Conference, New York, USA
  • 2013

in Proceedings of the 2011 FEL Conference

  • Shanghai, China
  • 2011

Phys

  • Rev. ST Accel. Beams 12, 030702
  • 2009

in Proceedings of the 2009 FEL Conference

  • Liverpool, UK
  • 2009