Experimental simulation of ground motion effects
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Indiana Univ. Cyclotron Facility, Bloomington, IN (United States)
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Argonne National Lab., IL (United States)
- Brookhaven National Lab., Upton, NY (United States)
Synchro-betatron coupling in a proton storage ring with electron cooling was studied by modulating a transverse dipole field close to the synchrotron frequency. The combination of the electron cooling and transverse field modulation on the synchrotron oscillation is equivalent to a dissipative parametric resonant system. The proton bunch was observed to split longitudinally into two pieces, or beamlets, converging toward strange attractors of the dissipative system. These phenomena might be important to understanding the effect of ground vibration on the SSC beam, where the synchrotron frequency is about 4 {approximately} 7 Hz, and the effect of power supply ripple on the RHIC beam, where the synchrotron frequency ramps through 60 Hz at 17 GeV/c.
- Research Organization:
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC35-89ER40486; AC02-76CH03000
- OSTI ID:
- 10164666
- Report Number(s):
- SSCL-Preprint--437; FNAL/C--93/176; CONF-930511--176; ON: DE93016091
- Country of Publication:
- United States
- Language:
- English
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