PAC07 - List of Sessions

WEXC — INSTABFB: Instabilities & Feedback (27-Jun-07 08:30—09:30)

Chair: J. Bisognano, UW-Madison/SRC, Madison, Wisconsin

Paper	Title	Page
WEXC01	Experimental Tests of a Prototype System for Active Damping of the E-P Instability at the LANL PSR	1991
	C. Deibele S. Assadi, V. V. Danilov, S. Henderson, M. A. Plum, A. K. Polisetti ORNL, Oak Ridge, Tennessee J. M. Byrd LBNL, Berkeley, California J. D. Gilpatrick, R. C. McCrady, J. F. Power, T. Zaugg LANL, Los Alamos, New Mexico S.-Y. Lee IUCF, Bloomington, Indiana M. T.F. Pivi SLAC, Menlo Park, California M. J. Schulte, Z. P. Xie UW-Madison, Madison, Wisconsin
	Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U. S. Department of Energy under contract DE-AC05-00OR22725. A prototype of an analog, transverse (vertical) feedback system for active damping of the two-stream (e-p) instability has been developed and successfully tested at the Los Alamos Proton Storage Ring (PSR). This talk describes the system configuration, results of several experimental tests and studies of system optimization along with studies of the factors limiting its performance.
	Slides
WEXC02	The Impedance Database Computation and Prediction of Single Bunch Instabilities	1996
	Y.-C. Chae
	Funding: Work supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The Impedance Database is a standardized 3D computation of the wake potential generated by a high-intensity beam. The database concept is described and compared to analytical and model-based approaches. The talk will address the computational challenges introduced by tapers, collimators, and very short bunches. Finally, single-bunch instabilities are predicted through tracking and compared to measurements at the Advanced Photon Source and other accelerators.
	Slides