Disruption and luminosity of flat beams

Technical Report · Mon Jun 10 04:00:00 EDT 1985

DOI:https://doi.org/10.2172/5558673· OSTI ID:5558673

Hollebeek, R; Minten, A

It has been suggested (ref.1) that high energy linear colliders might operate with non-round beam profiles, i.e. with different sigma/sub x/ and sigma/sub y/, described by an aspect ratio R = sigma/sub y/sigma/sub x/. The advantage of flat beams is the expectation, that ''beamstrahlung'', i.e., beam-beam synchrotron radiation is reduced with increasing R. The reason for this reduction comes from the fact that for constant bunch area and therefore constant luminosity the mean physical distance between the particles increases with R. When the physical distances are larger, the electromagnetic fields and therefore particle acceleration and radiation decrease. This would be of particular importance for very large linear colliders (VLC), where beamstrahlung may consume an appreciable fraction of the incident energy. The underlying assumption is that the emittance quality can be preserved in the deformed bunch. 4 refs., 3 figs., 3 tabs.

• Research Organization: Stanford Linear Accelerator Center, CA (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5558673
• Report Number(s): SLAC-CN-302; ON: DE85015137
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATOR FACILITIES
ACCELERATORS
BEAM DYNAMICS
BEAM EMITTANCE
BEAM LUMINOSITY
BEAM-BEAM INTERACTIONS
BREMSSTRAHLUNG
DATA
ELECTROMAGNETIC RADIATION
ENERGY LOSSES
INFORMATION
LINEAR ACCELERATORS
LOSSES
NUMERICAL DATA
RADIATIONS
SHAPE
STANFORD LINEAR COLLIDER
SYNCHROTRON RADIATION
THEORETICAL DATA