Summary of Working Group on Storage Ring Collective Effects

Conference · Mon Jun 01 00:00:00 EDT 1987

OSTI ID:6332072

Zisman, M S

The purposes of this Workshop were to investigate the techniques available for the production of very low emittance electron beams, to explore the limitations of these techniques, and to consider new possibilities that might improve the present situation. Two uses for these low emittance beams are of interest here: to serve for a high energy linear collider, which requires very small beam sizes to achieve a suitable value for the luminosity; and to serve for a free-electron laser (FEL) in the short wavelength - say 40 A - regime, which requires both small transverse beam dimensions and a very low longitudinal emittance. This paper contains a brief summary of the main topics discussed by the Working Group on Storage Ring Collective Effects. In the case of the linear collider application, the use of a damping ring (DR) to reduce, by radiation damping, the emittance of an intermediate energy linac beam prior to its subsequent injection into the remaining high energy linac is considered. For FEL use, a high-gain device with a storage ring to damp the beam periodically between passages through a bypass section containing the long FEL undulator is considered. Such designs - at a longer wavelength of 400 A - are already available, but the shorter wavelength of interest here is much more of a challenge.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6332072
• Report Number(s): LBL-23484; CONF-8703149-4; ON: DE87012890
• Resource Relation: Conference: ICFA workshop on low emittance e/sup -/ -e/sup +/ beams, Upton, NY, USA, 20 Mar 1987
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING
FREE ELECTRON LASERS
BEAM EMITTANCE
LINEAR ACCELERATORS
ELECTRON BEAMS
INSTABILITY
LANDAU DAMPING
PERFORMANCE
STORAGE RINGS
WIGGLER MAGNETS
ACCELERATORS
BEAMS
DAMPING
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
LASERS
LEPTON BEAMS
MAGNETS
PARTICLE BEAMS
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics
430400 - Particle Accelerators- Storage Rings
420300 - Engineering- Lasers- (-1989)