Title :
Tevatron AC dipole system
Author :
Miyamoto, R. ; Kopp, S.E. ; Jannson, A. ; Syphers, M.J.
Author_Institution :
Univ. of Texas at Austin, Austin
Abstract :
The AC dipole is an oscillating dipole magnet which can induce large amplitude oscillations without the emittance growth and decoherence. These properties make it a good tool to measure optics of a hadron synchrotron. The vertical AC dipole for the Tevatron is powered by an inexpensive high power audio amplifier since its operating frequency is approximately 20 kHz. The magnet is incorporated into a parallel resonant system to maximize the current. The use of a vertical pinger magnet which has been installed in the Tevatron made the cost relatively inexpensive. Recently, the initial system was upgraded with a more powerful amplifier and oscillation amplitudes up to 2-3sigma were achieved with the 980 GeV proton beam. This paper discusses details of the Tevatron AC dipole system and also shows its test results.
Keywords :
accelerator magnets; proton accelerators; proton beams; synchrotrons; AC dipole system; Tevatron; electron volt energy 980 GeV; hadron synchrotron; oscillating dipole magnet; parallel resonant system; proton beam; vertical pinger magnet; Costs; Frequency; High power amplifiers; Magnetic resonance; Optical amplifiers; Particle beams; Power amplifiers; Stimulated emission; Synchrotrons; System testing;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440023
