Incoherent beam-beam effects for round beams in the Novosibirsk phi-factory project

Author

Dikansky, N.S. ; Ivanov, P.M. ; Pestrikov, D.V. ; Simonov, E.A.

Author_Institution

Inst. of Nucl. Phys., Novosibirsk, USSR

fYear

1991

fDate

6-9 May 1991

Firstpage

523

Abstract

Based on theoretical studies and computer simulation, the following conclusions are made: at an incoherent interaction of round beams with sigma /sub s/ approximately beta /sub o/* a power suppression of betatron resonances is observed for particles with small longitudinal amplitude A/sub s/<< sigma /sub s/ and an essential reduction of this effect for A/sub s/>or=5 sigma /sub s/. As a result, the tune-shift parameter can achieve xi /sub o/ approximately 0.2 without a noticeable increase in the transverse beam size. A practical limit of the tune-shift parameter may be at a level of xi /sub o/ approximately 0.1-0.2 due to a strong decrease in the beam life time ( iota >

Keywords

electron accelerators; particle beam diagnostics; storage rings; Novosibirsk phi-factory; beam-beam effects; betatron resonances; incoherent interaction; longitudinal amplitude; round beams; transverse beam size; tune-shift parameter; Compaction; Gaussian distribution; Lagrangian functions; Lenses; Nuclear physics; Particle beams; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164355

Filename

164355