Decoherence of beam oscillations in the SSC due to beam-beam collisions

Author

Tsyganov, E. ; Shih, H.-J. ; Meinke, R. ; Nexsen, W. ; Herath-Banda, M. ; Taratin, A.

Author_Institution

Superconducting Super Collider Lab., Dallas, TX, USA

Volume

41

Issue

5

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1791

Lastpage

1794

Abstract

Computer simulations were made to study the decoherence of beam oscillations in the SSC collider due to the tune shift generated by the head-on beam-beam interaction. Our simulation results on the average tune shift and the RMS tune spread were compared with previous theoretical estimates and excellent agreement was found. Our simulations also confirmed the expectation that the decoherence time increases with decreasing tune spread in the beam. A simple procedure was presented to quantify the decoherence time from the simulated growth of the beam emittance relative to the beam centroid

Keywords

beam handling techniques; physics computing; proton accelerators; storage rings; synchrotrons; tuning; RMS tune spread; SSC; Superconducting Super Collider; beam centroid; beam emittance; beam oscillations decoherence; beam-beam collisions; computer simulations; decoherence time; head-on beam-beam interaction; simulated growth; tune shift; Colliding beam devices; Estimation theory; Gaussian distribution; Laboratories; Lattices; Particle beams; Particle tracking;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.317390

Filename

317390