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| WEPPH008 |
Measurements of Projected Emittances at FLASH
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338 |
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- F. Loehl, E. Prat
DESY, Hamburg
- K. Honkavaara
Uni HH, Hamburg
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FLASH is a SASE FEL user facility at DESY (Hamburg) operating with photon wavelengths in the range from vacuum ultraviolet to soft x-rays. Although the slice emittance is a more appropriate parameter to characterize the SASE process, the projected emittance provides a useful measure of the electron beam quality. At FLASH the projected emittance is measured at three location along the linac: in the injector (130 MeV), after the collimator (full electron beam energy), and in the undulator section. The transverse beam shape is measured with OTR monitors and wire scanners. The multi-monitor method is used to determine the emittance. In this paper we describe the measurement set-up and procedure and report recent results and planned upgrades.
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| THAAU02 |
Operational Experience of FLASH
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- B. Faatz, S. Schreiber
DESY, Hamburg
- K. Honkavaara
Uni HH, Hamburg
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Since summer 2005 the free electron laser FLASH at DESY is operating as a user facility. It produces 10 fs long laser like pulses from the vacuum ultraviolet to the soft X-ray wavelength range. Many successful user experiments have been carried out with this world wide unique facility. In this paper we report on operational issues of the facility.
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Slides
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