Initial gain measurements of an 800nm SASE FEL, VISA
2001; Elsevier BV; Volume: 475; Issue: 1-3 Linguagem: Inglês
10.1016/s0168-9002(01)01609-6
ISSN1872-9576
AutoresP. Frigola, A. Murokh, P. Musumeci, C. Pellegrini, S. Reiche, J. B. Rosenzweig, A. Tremaine, M. Babzien, I. Ben‐Zvi, E. Johnson, R. Malone, G. Rakowsky, J. Skaritka, X.J Wang, Karl A. van Bibber, L. Bertolini, J. Hill, G. P. Le Sage, M. Libkind, A. Toor, R. Carr, M. Cornacchia, L. Klaisner, H.-D. Nuhn, R. Rüland, Dinh C. Nguyen,
Tópico(s)Advanced X-ray Imaging Techniques
ResumoThe Visible to Infrared SASE Amplifier (VISA) FEL is designed to obtain high gain at a radiation wavelength of 800 nm. The FEL uses the high brightness electron beam of the Accelerator Test Facility (ATF), with energy of 72 MeV. VISA uses a novel, 4 m long, strong focusing undulator with a gap of 6 mm and a period of 1.8 cm. To obtain large gain the beam and undulator axis have to be aligned to better than 5 μm. Results from initial measurements on the alignment, gain, and spectrum will be presented and compared to theoretical calculations and simulations.
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