Effects of the synchro-betatron coupling induced by dipole-field modulation

Journal Article · Mon Jan 31 23:00:00 EST 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.49.1610· OSTI ID:5237432

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

---

1. Indiana University Cyclotron Facility; Indiana University; Bloomington; Indiana 47405 (United States) The SSC Laboratory; 2550 Beckleymeade Avenue; Dallas; Texas 75237-3946 (United States) Stanford Linear Accelerator Center; MS26; Box 4349; Stanford; California 94309 (United States) Fermilab; P.O. Box 500; Batavia; Illinois 60510 (United States) Argonne National Laboratory; 9700 South Cass Avenue; Argonne; Illinois 60439 (United States) Brookhaven National Laboratory; Upton; New York 11973 (United States)

The synchro-betatron coupling induced by modulating a transverse dipole field at a frequency close to the synchrotron frequency was studied experimentally. The combination of the electron cooling and transverse-field modulation on the synchrotron oscillation is equivalent to a dissipative parametric resonant system. Six-dimensional Poincare maps were measured at ten-turn intervals. The proton bunch was observed to split longitudinally into two pieces, or beamlets, converging toward attractors of the dissipative system within a rf bucket. Based on our experimental results, the effects of ground vibration on the superconducting supercollider beam and the effects of power-supply ripple on the relativistic heavy-ion collider beam are examined.

• DOE Contract Number: FG02-93ER40801
• OSTI ID: 5237432
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 49:2; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
BEAM COOLING
BEAM DYNAMICS
BEAM SPLITTING
BEAMS
BETATRON OSCILLATIONS
COUPLING
CYCLIC ACCELERATORS
ELECTRON COOLING
MAGNETIC FIELDS
MODULATION
NUCLEON BEAMS
OSCILLATIONS
PARTICLE BEAMS
PROTON BEAMS
SYNCHROTRON OSCILLATIONS
SYNCHROTRONS