Multiparticle coherence calculations for synchrotron-radiation emission

Hirschmugl, Carol J.; Sagurton, M.; Williams, Gwyn

doi:10.1103/physreva.44.1316

Cited by 119 publications

(84 citation statements)

References 5 publications

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“…Calculation of the incoherent part would require taking into account the exact position of each electron. However, the electron density distribution scales with N, while in general, the local density fluctuations scale with N p [19]. Because of the large number of electrons in a typical bunch (N 10 8 ), the fluctuations and thus the incoherent radiation can safely be neglected.…”

Section: A Electric Fields Of Ctrmentioning

confidence: 99%

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Theory of coherent transition radiation generated by ellipsoidal electron bunches

Root

Smorenburg

Oudheusden

et al. 2007

Phys. Rev. ST Accel. Beams

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We present the theory of coherent transition radiation (CTR) generated by ellipsoidal electron bunches. We calculate analytical expressions for the electric field spectrum, the power spectrum, and the temporal electric field of CTR, generated by cylindrically symmetric ellipsoidal electron bunches with hard and soft edges. This theory is relevant for diagnostics of ellipsoidal electron bunches. Realization of such bunches would solve the problem of space-charge induced emittance degradation.

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Section: A Electric Fields Of Ctrmentioning

confidence: 99%

“…We introduce the form factor for any spatial distribution, in an analog fashion as in Refs. [14,18,19]. We only evaluate the coherent part of the spectrum and ignore the incoherent part, which is valid because of the large number of electrons ( 10 8 ) present in a typical bunch.…”

Section: Introductionmentioning

confidence: 99%

Theory of coherent transition radiation generated by ellipsoidal electron bunches

Root

Smorenburg

Oudheusden

et al. 2007

Phys. Rev. ST Accel. Beams

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“…The reference intensity I 2 was always measured with the less expensive pyroelectric detector. Equation (6) can be rewritten in frequency domain as…”

Section: Michelson Interferometermentioning

confidence: 99%

Longitudinal electron bunch diagnostics using coherent transition radiation

Mihalcea

Bohn

Happek

et al. 2006

Phys. Rev. ST Accel. Beams

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The longitudinal charge distribution of electron bunches in the Fermilab/NICADD photoinjector was determined using the coherent transition radiation produced by electrons passing through a thin metallic foil. The autocorrelation of the transition radiation signal was measured with a Michelson-type interferometer. The response function of the interferometer was determined from measured and simulated intensity spectra for low electron bunch charge and maximum longitudinal compression. Both pyroelectric and Golay detectors were used for these measurements. A Kramers-Kronig technique was used to determine longitudinal charge distribution. Measurements were performed for electron bunch lengths in the range from 0.3 to 2 ps (rms). To test the accuracy of this interferometric method, the longitudinal charge distribution was measured for double-peaked electron bunches with known distance between the two pulses. The agreement between measured bunch length and simulation is within 30%.

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“…Coherent transition radiation (CTR) emitted by electron bunches when crossing a metallic foil can be related to the longitudinal charge distribution form factor ¢ ¡ ¤ £ ¦ ¥ [2,3]:…”

Section: Introductionmentioning

confidence: 99%

Longitudinal Electron Bunch Diagnostics Using Coherent Transition Radiation

Mihalcea

Bohn

Happek

et al.

Proceedings of the 2005 Particle Accelerator Conference

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The longitudinal charge distribution of electron bunches in the Fermilab/Nicadd A0 photoinjector was determined using the coherent transition radiation produced by electrons passing through a thin metallic foil. The autocorrelation of the transition radiation signal was measured with a Michelson-type interferometer. The response function of the interferometer was determined from measured and simulated power spectra for low electron bunch charge and maximum longitudinal compression. A Kramers-Kronig technique was used to determine longitudinal charge distribution. Measurements were performed for electron bunch lengths in the range from 0.3 to 2 ps (rms).

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Multiparticle coherence calculations for synchrotron-radiation emission

Cited by 119 publications

References 5 publications

Theory of coherent transition radiation generated by ellipsoidal electron bunches

Theory of coherent transition radiation generated by ellipsoidal electron bunches

Longitudinal electron bunch diagnostics using coherent transition radiation

Longitudinal Electron Bunch Diagnostics Using Coherent Transition Radiation

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