Intra-undulator measurements at VISA FEL

Conference · Thu Aug 10 00:00:00 EDT 2000

OSTI ID:15005154

Murokh, A; Frigola, P; Pellegrini, C; Rosenzweig, J; Tremaine, A; Johnson, E; Wang, X J; Yakimenko, V; Klaisner, L; Nuhn, H D; Toor, A

We describe a diagnostics system developed, to measure exponential gain properties and the electron beam dynamics inside the strong focusing 4-m long undulator for the VISA (Visible to Infrared SASE Amplifier) FEL. The technical challenges included working inside the small undulator gap, optimizing the electron beam diagnostics in the high background environment of the spontaneous undulator radiation, multiplexing and transporting the photon beam. Initial results are discussed.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15005154
• Report Number(s): UCRL-JC-140087; TRN: US0401567
• Resource Relation: Conference: 2000 Free Electron Laser, Durham, NC (US), 08/13/2000--08/18/2000; Other Information: PBD: 10 Aug 2000
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
43 PARTICLE ACCELERATORS
47 OTHER INSTRUMENTATION
ELECTRON BEAMS
FOCUSING
FREE ELECTRON LASERS
PHOTON BEAMS
WIGGLER MAGNETS