Quasi-isochronous storage ring for enhanced FEL performance

Conference · Tue Aug 01 00:00:00 EDT 1995

OSTI ID:114562

Ohgaki, H; Robin, D ^[1]; Yamazaki, Y ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Electrotechnical Lab., Ibaraki (Japan)

A compact storage ring is designed to be used as a driver for an FEL. This ring can be operated very close to zero momentum compaction factor ({alpha}) to increase the electron density and thus the gain of the FEL. In order to control {alpha} with zero dispersion in the straight sections the authors use an inverted dipole located between the bending magnets and 4-families of quadrupoles. By using 3-families of sextupoles they can control the 2 transverse chromaticities and 2nd order momentum compaction. They find that the ring has sufficient dynamic aperture for good performance.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Japan Atomic Energy Research Inst., Tokyo (Japan)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 114562
• Report Number(s): LBL-37630; CONF-9508156-2; ON: DE96001104; TRN: 95:007459
• Resource Relation: Conference: 17. international free electron laser conference, New York, NY (United States), 21-25 Aug 1995; Other Information: PBD: Aug 1995
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
STORAGE RINGS
DESIGN
CHROMATIC ABERRATIONS
FREE ELECTRON LASERS
TRANSVERSE MOMENTUM
ELECTRON BEAMS