Title :
Bunched beam cooling for the Fermilab Tevatron
Author :
Pasquinelli, Ralph J.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
Fermilab has been working on bunched beam transverse stochastic cooling in the Tevatron since 1990. In that time much progress has been made in understanding the difficulties of making such a system work with reasonable cooling times. Problems with common mode rejection of longitudinal signals, wide band GHz signal transmission using fiber optics, and specialized optical techniques of recursive notch filters have been researched and employed. Specialized planar loop pickup and kicker arrays were developed. Signal suppression has been observed. Efforts are underway to eliminate the coherent signals that dominate the Schottky spectrum
Keywords :
beam handling techniques; colliding beam accelerators; optical links; proton accelerators; synchrotrons; Fermilab Tevatron; Schottky spectrum; bunched beam transverse stochastic cooling; common mode rejection; fiber optics; kicker arrays; longitudinal signals; planar loop pickup arrays; recursive notch filters; wide band GHz signal transmission; Cooling; Feedback; Optical fiber filters; Optical fibers; Optical filters; Particle beams; Phased arrays; Printed circuits; Stochastic processes; Wideband;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505559
