Synchrotron frequency spread independence of bunched-beam stochastic cooling at the Fermilab Recycler

Journal Article · Tue Nov 01 00:00:00 EST 2005 · Phys.Rev.ST Accel.Beams 8:124404,2005

DOI:https://doi.org/10.1103/PhysRevSTAB.8.124404· OSTI ID:879040

Broemmelsiek, D; Burov, Alexey V; Nagaitsev, S; Neuffer, D

It is generally accepted that longitudinal stochastic cooling of bunched beams is not possible without a synchrotron frequency spread. Experiments in the Recycler storage ring (Fermilab) demonstrate the opposite: with an antiproton bunch in a parabolic potential well (no synchrotron frequency spread), the cooling was almost as efficient as in a trapezoidal potential well (with a relative synchrotron frequency spread of {approx} 100%). A possible explanation is that, at Recycler parameters, diffusion processes are sufficient to provide particle mixing.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 879040
• Report Number(s): FERMILAB-PUB-05-433-AD; TRN: US0701206
• Journal Information: Phys.Rev.ST Accel.Beams 8:124404,2005, Journal Name: Phys.Rev.ST Accel.Beams 8:124404,2005
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ANTIPROTONS
DIFFUSION
FERMILAB
STOCHASTIC COOLING
STORAGE RINGS
SYNCHROTRONS
Accelerators