A continuous plasma final focus
Scaling laws are set down for a plasma cell used for transport, focusing and current neutralization of fine, intense, relativistic electron beams. It is found that there exists a minimum beam spot size, {sigma}{sub min} {approximately} {var epsilon}{sub n}(I{sub A}/{gamma}I){sup 1/2}, in such a focusing system. Propagation issues, including channel formation, synchrotron radiation, beam ionization and instabilities, are discussed. Numerical examples are given for a proof-of-principle experiment at KEK, an application for luminosity enhancement at the SLC, and a hypothetical TeV electron-positron collider. For a TeV collider, it is found that the effect of ion-motion on focusing, and the effect of Buneman instability on current neutralization must be considered. 3 figs., 1 tab.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- Sponsoring Organization:
- DOE/ER; KEK
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 7020088
- Report Number(s):
- LBL-27965; CONF-8908209-1; ON: DE90006096; TRN: 90-007109
- Resource Relation:
- Conference: Workshop on the role of plasmas in accelerators, Tsukuba (Japan), 28 Aug - 1 Sep 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PLASMA FOCUS DEVICES
DESIGN
STANFORD LINEAR COLLIDER
PLASMA FOCUS
BEAM NEUTRALIZATION
BEAM TRANSPORT
ELECTRON BEAMS
FOCUSING
INSTABILITY
IONIZATION
PLASMA DENSITY
SCALING LAWS
SCATTERING
ACCELERATOR FACILITIES
ACCELERATORS
BEAMS
LEPTON BEAMS
LINEAR ACCELERATORS
OPEN PLASMA DEVICES
PARTICLE BEAMS
THERMONUCLEAR DEVICES
430303* - Particle Accelerators- Experimental Facilities & Equipment