The proton driver for the μμ collider

Author

Norem, J. ; Ankenbrandt, C. ; Griffin, J. ; Johnstone, C. ; Lee, S.Y. ; Popovic, M. ; Ng, K.Y. ; Brennan, M. ; Roser, T. ; Trbojevic, D. ; Wei, J.

Author_Institution

Argonne Nat. Lab., IL, USA

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

399

Abstract

The proton driver for the μμ collider might operate at about 15 Hz and produce four bunches of 2.5.10¹³ protons/bunch at about 10 GeV (or half that number at 20-30 GeV) with an RMS bunch length of about 1 nsec. A number of options have been considered to produce these bunches using: (a) simple bunch rotation, (b) energy slewing near γ_t followed by a fast increase of γ_t which facilitates bunching, and (c) change of RF frequency in a ring-to-ring transfer. Flexible momentum compaction (FMC), or similar, lattices seem to offer control of γ_t even on short time scales. The large momentum spread, space charge tune shift and rapid bunching would tend to stabilize short, intense bunches, although I_pk~1600 A. Both active (harmonic cavities) and passive (inductive wall) solutions have been considered to minimize high current beam effects. Magnet and vacuum systems would be similar to other high current designs

Keywords

colliding beam accelerators; linear accelerators; particle beam bunching; particle beam injection; particle beam stability; proton accelerators; synchrotrons; 10 GeV; 15 Hz; 1600 A; bunches; energy slewing; flexible momentum compaction; linear injector; muon collider; proton driver; space charge tune shift; stabilization; synchrotron; Acceleration; Books; Compaction; Cooling; Mesons; Particle beams; Production systems; Protons; Radio frequency; Synchrotrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749664

Filename

749664