Title :
1.8 TeV Tevatron upgrade lattices
Author :
Garren, A.A. ; Syphers, M.J.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
The present Fermilab upgrade program calls for a future higher-energy (⩾1.5 TeV) superconducting accelerator to reside in the existing Tevatron tunnel. Three possible lattice designs for this accelerator are presented. The first involves longer straight sections which permit the extraction of 1.8-TeV beams to the fixed target experimental areas or external aborts. The second option uses stronger focusing quadrupoles to reduce the beam size throughout the accelerator. In this scheme, a large number of quadrupole circuits provide the necessary matching of the dispersion function across the long straight sections. The third option uses longer standard cells in the arcs, and the cell length is strategically chosen to minimize the dispersion wave generated by the medium- and mini-straight sections located in the arcs. The beam size is not as small as in the second option, though it is better behaved than in the present Tevatron lattice; in addition, it is believed that separator and low-beta schemes can be more easily implemented using this lattice design
Keywords :
beam handling equipment; proton accelerators; storage rings; synchrotrons; 1.8 TeV; Fermilab upgrade program; Tevatron upgrade lattices; accelerator; beam size; dispersion function; dispersion wave; focusing quadrupoles; low-beta schemes; quadrupole circuits; superconducting accelerator; Circuits; Colliding beam accelerators; Colliding beam devices; Educational institutions; Laboratories; Lattices; Particle beams; Particle separators; Superconducting magnets; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73450
