Title :
Experimental determination of a betatron difference resonance
Author :
Ellison, M. ; Ball, M. ; Brabson, B. ; Budnick, J. ; Causyn, D.D. ; Chao, A.W. ; Collins, J. ; Derenchuk, V. ; Dutt, S. ; East, G. ; Ellison, T. ; Friesel, D. ; Hamilton, B. ; Huang, H. ; Jones, W.P. ; Lee, S.Y. ; Li, D. ; Minty, M. ; Nagaitsev, S. ; Ng,
Author_Institution :
Cyclotron Facility, Indiana Univ., Bloomington, IN, USA
Abstract :
The betatron difference resonance, Qx-2Qz=-6, where Qx,z are the number of betatron oscillations per turn, was studied at the Indiana University Cyclotron Facility (IUCF) cooler ring. The position of the beam was measured in both the horizontal and vertical planes of oscillation after a pulsed kicker magnet was fired to produce coherent motion. The effect of the coupling resonance was clearly observed and it was found that the subsequent particle motion could be described by a simple Hamiltonian. The resonance strength and tune shift as a function of betatron amplitude were measured
Keywords :
particle beam diagnostics; proton accelerators; storage rings; synchrotrons; IUCF cooler ring; Indiana University Cyclotron Facility cooler ring; betatron amplitude; betatron difference resonance; betatron oscillations; particle motion; pulsed kicker magnet; resonance strength; tune shift; Chaos; Cyclotrons; Extraterrestrial measurements; Laboratories; Magnetic field measurement; Magnetic resonance; Motion measurement; Particle accelerators; Position measurement; Pulse measurements;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308959
