The ENEA F-CUBE Facility: Trends in R.F. driven compact FELs and related diagnostics

Conference · Sun Dec 31 00:00:00 EST 1995

DOI:https://doi.org/10.1016/0168-9002(95)01255-9· OSTI ID:238788

Doria, A; Gallerano, G P; Giovenale, E ^[1]

---

1. Univ. of Essex, Colchester (United Kingdom); and others

The Frascati FEL Facility F-CUBE (FEL-Compact for User Basic Experiment) currently operates in the mm-wave region providing about 600 hrs of beam time per year to users. This FEL is a low cost compact device intended to be the first step in making the FEL a laboratory tool. It exploits some unique features like short pulses with coherent emission seeding and the dispersion properties of a waveguide resonator at {open_quotes}zero slippage{close_quotes} to provide wide band tunability. The system is presently being upgraded to extend these characteristics into the far infrared. A new NdFeB permanent magnet undulator has been built and magnetic measurements have been performed. FEL tunability in the interval from 400 to 900 pm will be provided by the variation of the undulator gap and of the gap of the planar waveguide in the resonator. Due to the short electron bunch duration coherent spontaneous emission is expected also in this wavelength range. Its effect on the FEL performance will be discussed together with a comparison of different coherent emission mechanisms, like coherent transition radiation (CTR), which can be used as a diagnostic tool.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• OSTI ID: 238788
• Report Number(s): BNL-61982-Absts.; CONF-9508156-Absts.; ON: DE96002729; TRN: 96:013277
• Resource Relation: Journal Volume: 375; Journal Issue: 1-3; Conference: 17. international free electron laser conference, New York, NY (United States), 21-25 Aug 1995; Other Information: PBD: [1995]; Related Information: Is Part Of 17th international free electron laser conference and 2nd international FEL users` workshop. Program and abstracts; PB: 300 p.
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
FREE ELECTRON LASERS
BEAM MONITORING
PERFORMANCE
TUNING
RF SYSTEMS
FAR INFRARED RADIATION
WIGGLER MAGNETS