SASE Results and Possible Extensions of the TESLA Test Facility FEL User Facility

(FR-2-03) Presenting Author: Bart Faatz (Invited)

B. Faatz for the TESLA Test Facility Team  

HASYLAB at DESYLAB

On the way to an FEL user facility, the TESLA Test Facility FEL has generated its first Self-Amplified Spontaneous Emission in the Vacuum Ultraviolet in the range between 80 and 180 nm. The measured data will be presented. For the user facility, the final goal is a minimum radiation wavelength of 6 nm. Several possible extensions naturally synchronized with the VUV beam in addition to the two-stage FEL are under consideration. Among them are a Regenerative Amplifier FEL (RAFEL) in the Ultraviolet (100 to 300 nm), a higher harmonic generator, a far-infrared coherent light source in the wavelength range between 100 and 300 micrometer and a X-ray source using backscattered photons from the infrared coherent source. These possibilities and the implementation into the user facility will be discussed.