Experimental simulation of ground motion effects

Conference · Sat May 01 00:00:00 EDT 1993

OSTI ID:7368779

Syphers, M J; Chao, A W; Dutt, S; Yan, Y T; Zhang, P L ^[1]; Ball, M; Brabson, B; Budnick, J; Caussyn, D D; Collins, J; Derenchuk, V; East, G; Ellison, M; Ellison, T; Friesel, D; Hamilton, B; Huang, H; Jones, W P; Lee, S Y; Li, D ; Nagaitsev, S; Pei, X; Rondeau, G; Sloan, T ^[2]

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1. Superconducting Super Collider Lab., Dallas, TX (United States)
2. Indiana Univ. Cyclotron Facility, Bloomington, IN (United Sta

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC35-89ER40486
• OSTI ID: 7368779
• Report Number(s): SSCL-Preprint-437; CONF-930511--176; ON: DE93016091
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
BEAM COOLING
BEAM DYNAMICS
BEAM PROFILES
DIFFERENTIAL EQUATIONS
ELECTRON COOLING
EQUATIONS
EQUATIONS OF MOTION
GROUND MOTION
MATHEMATICAL SPACE
MOTION
OSCILLATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PHASE SPACE
SPACE
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SYNCHROTRON OSCILLATIONS