Phase modulation of the bucket stops bunch oscillations at the Fermilab Tevatron

Journal Article · Mon Apr 02 00:00:00 EDT 2012 · Phys.Rev.ST Accel.Beams 15:044401,2012

DOI:https://doi.org/10.1103/PhysRevSTAB.15.044401· OSTI ID:1039717

Tan, C Y; Burov, A

Bunches in the Tevatron are known to exhibit longitudinal oscillations which persist indefinitely. These oscillations are colloquially called 'dancing bunches.' Although the dancing proton bunches do not cause single bunch emittance growth or beam loss at injection, they lead to bunch lengthening at collisions. In Tevatron operations, a longitudinal damper has been built which stops this dance and damps out coupled bunch modes. Recent theoretical work predicts that the dance can also be stopped by an appropriate change in the bunch distribution. This paper describes the Tevatron experiments which support this theory.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1039717
• Report Number(s): FERMILAB-PUB-11-592-AD; TRN: US1202240
• Journal Information: Phys.Rev.ST Accel.Beams 15:044401,2012, Vol. 15, Issue 4; ISSN 1098-4402
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHING
BEAM EMITTANCE
DISTRIBUTION
FERMILAB TEVATRON
MODULATION
OSCILLATIONS
PROTONS
Accelerators