Slice-Emittance Measurements at ELBE/SRF-Injector
Slice-Emittance Measurements at ELBE/SRF-Injector
Teichert, J.; Rudolph, J.; Kamps, T.; Abo-Bakr, M.
The linear accelerator ELBE delivers high-brightness electron bunches to multiple user stations, including an IR-FEL. The current thermionic injector is being replaced by a superconducting rf photoinjector (SRFinjector) which promises higher beam quality. Using a transfer chicane, beam from the SRF-injector can be injected into the ELBE linac. Detailed characterization of the electron beam is achieved by measuring the vertical slice emittance of the beam. To perform this measurement a combination of rf zero-phasing, spectrometer dipole and quadrupole scan is used. The electron beam is accelerated by the first cavity of the ELBE accelerator module and send through a second cavity which is operated at zero-crossing of the rf. In doing so a linear energy-time correlation is induced to the beam. The chirped beam is send through a spectrometer dipole and the longitudinal distribution can be made visible on a scintillator screen. Performing a quadrupole scan allows the determination of the emittance for di_erent slices. This paper explains the working principle of the method and the experimental setup and shows results of performed simulations as well as first measurement results.
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
Related publications
- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 15719) publication
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Poster
DIPAC 2011, 16.-18.05.2011, Hamburg, Deutschland -
Contribution to proceedings
DIPAC 2011, 16.-18.05.2011, Hamburg, Deutschland
Proceedings of DIPAC 2011, 416-418
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