Experimental study of synchro-betatron coupling induced by dipole modulation

Journal Article · Mon Aug 02 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.719· OSTI ID:6037063

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

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1. The SCC Laboratory; 2550 Beckleymeade Avenue; Dallas; Texas 75237-3946 (United States) Indiana University Cyclotron Facility; Indiana University Bloomington; Indiana 47405 (United States) Stanford Linear Accelerator Center; MS26; Box 4344; Stanford; California 94309 (United States) Fermilab; P.O. Box 500; Batavia; Illinois 60510 (United States) Argonne National Laboratory; APS; 9700 South Cass Avenue; Illinois 60439 (United States) Brookhaven National Laboratory; Upton; New York 11973 (United States)

Synchro-betatron coupling in a proton storage ring with electron cooling was studied experimentally 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 attractors of the dissipative system. These phenomena might be important in understanding the effect of ground vibration on the Superconducting Super Collider beam, and the effect of power supply ripple on the Relativistic Heavy-Ion Collider beam.

• DOE Contract Number: AC35-89ER40486
• OSTI ID: 6037063
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:5; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
ATTRACTORS
BARYONS
BEAM BUNCHING
BEAM DYNAMICS
BREMSSTRAHLUNG
CHARGED-PARTICLE REACTIONS
COUPLING
DATA
DIPOLES
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ELEMENTARY PARTICLES
ENERGY LOSSES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
HADRONS
HEAVY ION REACTIONS
INFORMATION
INSTABILITY
LOSSES
MATHEMATICAL SPACE
MODULATION
MULTIPOLES
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARAMETRIC INSTABILITIES
PHASE SPACE
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PROTONS
RADIATIONS
RELATIVISTIC RANGE
RESONANCE
SPACE
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SYNCHROTRON RADIATION
USES