Title :
Uniform longitudinal beam profiles in the Fermilab Recycler using adaptive RF correction
Author :
Hu, Martin ; Broemmelsiek, Daniel Robert ; Chase, Brian ; Crisp, James L. ; Eddy, Nathan ; Joireman, Paul W. ; Ng, King Yuen
Author_Institution :
Fermilab, Batavia
Abstract :
The Fermilab recycler ring is a permanent magnet based 8 GeV anti-proton storage ring. A wideband RF system, driven with ARB´s (ARBitrary waveform generators), allows the system to produce programmable barrier waveforms. Beam current profile distortion was observed, its origin verified both experimentally and theoretically, and an FPGA-based correction system was designed, tested and implemented to level the bunch profile.
Keywords :
accelerator RF systems; accelerator magnets; field programmable gate arrays; particle beam bunching; permanent magnets; proton accelerators; storage rings; FPGA-based correction system; Fermilab recycler ring; antiproton storage ring; beam current profile; bunch profile; electron volt energy 8 GeV; longitudinal beam profiles; permanent magnet; programmable barrier waveforms; wideband RF system; Broadband amplifiers; Cooling; Monitoring; Power amplifiers; Pulse amplifiers; Radio frequency; Radiofrequency amplifiers; Resistors; Shape; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440244
