Title :
Operating experience with high beam currents and transient beam loading in the SLC damping rings
Author :
Minty, M.G. ; Akre, R. ; Krejcik, P. ; Siemann, R.H.
Author_Institution :
Stanford Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
During the 1994 SLC run the nominal operating intensity in the damping rings was raised from 3.5×1010 to greater than 4×1010 particles per bunch (ppb). Stricter regulation of rf system parameters was required to maintain stability of the rf system and particle beam. Improvements were made in the feedback loops which control the cavity amplitude and loading angles. Compensation for beam loading was also required to prevent klystron saturation during repetition rate changes. To minimize the effects of transient loading on the rf system, the gain of the direct rf feedback loop and the loading angles were optimized
Keywords :
accelerator RF systems; beam handling equipment; colliding beam accelerators; electron accelerators; klystrons; linear colliders; RF system parameters; SLC damping rings; cavity amplitude; direct RF feedback loop; feedback loops; high beam currents; klystron saturation; loading angles; transient beam loading; Colliding beam devices; Damping; Feedback loop; Impedance; Klystrons; Linear accelerators; Particle beams; Stability; Tuners; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505779
