Initial performance of Los Alamos Advanced Free Electron Laser

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:7161882

Nguyen, D C; Baca, D M; Chan, K C.D.; Cheairs, R B; Fortgang, C M; Gierman, S M; Johnson, W J.D.; Holcomb, D E; Kinross-Wright, J; McCann, S W; Meier, K L; Plato, J G; Sheffield, R L; Sherwood, B A; Sigler, F E; Timmer, C A; Warren, R W; Weber, M E; Wilson, W L

We report recent results on the high-brightness electron linac and initial performance of the Advanced FEL at Los Alamos. The design and construction of the Advanced FEL beamline are based upon integration of advanced technologies such as high-brightness photoinjector, high-gradient compact linac, and permanent-magnet beamline components. With the use of microwiggler, both permanent magnet and pulsed electromagnet, and compact optical resonator, the Advanced FEL will be the first of its kind small enough to be mounted on an optical table and yet capable of providing highpower optical output spanning the near-ir and visible regions. A schematic of the Advanced FEL is shown in. The source of high-current electron pulses is a laser-gated photoelectron injector which forms-an integral part of a high-gradient 1.2-m long rf linear accelerator. The latter is capable of accelerating electrons up to 20 MeV with room temperature operation and 25 MeV at 77K. The electrons are produced in 10-ps pulses with peak currents as high as 300 A. These electron pulses are transported in a brightness-preserving beamline consisting of permanent magnet dipoles and quadrupoles. The beamline has three 30{degrees} bends. The first bend allows for the photocathode drive laser input; the second allows for the FEL output and the third turns the electron beam into the floor for safety reasons. Additional information on the design physics of the Advanced FEL can be found elsewhere.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7161882
• Report Number(s): LA-UR-92-2803; CONF-9208109--25; ON: DE92040214
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002 -- Engineering-- Lasers & Masers-- (1990-)
43 PARTICLE ACCELERATORS
430302* -- Particle Accelerators-- Injection & Extraction Systems
ACCELERATORS
ALKALI METAL COMPOUNDS
BEAM EMITTANCE
BEAM INJECTION
BEAMS
CATHODES
CESIUM COMPOUNDS
ELECTRICAL EQUIPMENT
ELECTRODES
ELECTROMAGNETS
ELECTRON BEAMS
EQUIPMENT
FREE ELECTRON LASERS
LAMPF LINAC
LASERS
LEPTON BEAMS
LINEAR ACCELERATORS
LUMINOSITY
MAGNETS
MESON FACTORIES
OPTICAL PROPERTIES
PARTICLE BEAMS
PERFORMANCE
PHOTOCATHODES
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
RARE EARTH COMPOUNDS
TERBIUM COMPOUNDS
WIGGLER MAGNETS