Low emittance lattice for LEP

Author

Alexahia, Y. ; Brandt, D. ; Cornelis, K. ; Hofmann, A. ; Koutchouk, J-P. ; Meddahi, M. ; Roy, G. ; Verdier, A.

Author_Institution

JINR, Dubna, Russia

Volume

1

fYear

1995

fDate

1-5 May 1995

Firstpage

560

Abstract

In order to obtain the largest luminosity with LEP2, it is attractive to make the beam emittance as small as possible because the beam-beam effect is not a limitation at the energy of E≈90 GeV for the obtained bunch currents. This can be achieved with a high tune lattice. Two possible candidates are lattices with a horizontal phase advance of 108° or 135° per cell. Both have a vertical phase advance of 60°. These lattices were developed during 1994 and the results are presented. Tests to reach high intensity for the 108° lattice were performed and the bunch current achieved is compared with expectations. For this lattice the detuning vs. intensity and several optics parameters were measured as well

Keywords

beam handling equipment; beam handling techniques; colliding beam accelerators; electron accelerators; electron optics; storage rings; synchrotrons; 90 GeV; LEP; LEP2; beam emittance; beam-beam effect; bunch currents; detuning; high tune lattice; horizontal phase advance; low emittance lattice; optics parameters; vertical phase advance; Collimators; Lattices; Light sources; Nonlinear optics; Optical tuning; Performance evaluation; Resonance; Stimulated emission; Synchrotrons; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.504719

Filename

504719