Title :
High intensity performance of the Brookhaven AGS
Author :
Ahrens, L.A. ; Alessi, J. ; Blaskiewicz, M. ; Brennan, J.M. ; Brown, K. ; Gardner, C. ; Glenn, J.W. ; Roser, T. ; Smith, K.S. ; VanAsselt, W. ; Zhang, S.Y.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The Brookhaven AGS provides 24 GeV protons for a multi-user program of fixed-target high energy physics experiments, such as the study of extremely rare kaon decays. Up to 7×1013 protons are slowly extracted over 2.2 seconds each 5.1 seconds. The muon storage ring of the g-2 experiment is supplied with bunches of 7×1012 protons. Since the completion of the a 1.9 GeV Booster synchrotron and installation of a new high-power RF system and transition jump system in the AGS various modes of operation have been explored to overcome space charge limits and beam instabilities at these extreme beam intensities. Experiments have been done using barrier cavities to enable accumulation of de-bunched beam in the AGS as a potential path to significantly higher intensities. We report on the present understanding of intensity limitations and prospects for overcoming them
Keywords :
colliding beam accelerators; particle beam stability; proton accelerators; space charge; synchrotrons; 24 GeV; Brookhaven AGS; beam instabilities; booster synchrotron; de-bunched beam; fixed-target high energy physics experiments; g-2 experiment; high intensity performance; high-power RF system; intensity limitations; muon storage ring; space charge limits; transition jump system; Acceleration; Apertures; Choppers; Linear particle accelerator; Mesons; Protons; Shape control; Space charge; Space exploration; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795775
