Title :
Measurement of trapped ion pockets and control of ion instabilities in the Fermilab antiproton accumulator
Author :
Werkema, Steven J. ; Fullett, Kenneth D. ; Zhou, Ping
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
Resonant interaction of positively charged, trapped residual gas ions with a negatively charged, intense antiproton beam has been identified as the primary cause of transverse instability in the Fermilab antiproton accumulator. An upgraded ion clearing system was recently installed. This upgrade yielded a significant improvement in machine performance as well as an enhanced capability for studying trapped ion related phenomena. The operational impact and preliminary results from some initial measurements made with this system are presented herein
Keywords :
beam handling techniques; particle beam diagnostics; proton accelerators; storage rings; synchrotrons; Fermilab antiproton accumulator; ion instabilities; transverse instability; trapped ion pockets; Coaxial cables; Current supplies; Electrodes; Hardware; Monitoring; Power supplies; Pulsed power supplies; Resonance; Structural beams; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309635
