Title :
Effects of temperature variation on the SLC linac RF system
Author :
Decker, F.-J. ; Akre, R. ; Byrne, M. ; Farkas, Z.D. ; Jarvis, H. ; Jobe, K. ; Koontz, R. ; Mitchell, M. ; Pennacchi, R. ; Ross, M. ; Smith, H.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
The RF system of the Stanford Linear Collider in California is subjected to daily temperature cycles of up to 15°C. This can result in phase variations of 15° at 3 GHz over the 3 km length of the main drive line system. Subsystems show local changes of the order of 3° over 100 meters. When operating with flat beams and normalized emittances of 0.3*10-5 m-rad in the vertical plane, changes as small as 0.5° perturb the wakefield tail compensation and make continuous tuning necessary. Different approaches to stabilization of the RF phases and amplitudes are discussed
Keywords :
accelerator RF systems; accelerator cavities; electron accelerators; linear accelerators; linear colliders; tuning; 100 m; 3 GHz; RF amplitude stability; RF phase stability; RF system; SLC; flat beams; normalized emittance; temperature variation; tuning; wakefield tail compensation; Acceleration; Feedback; History; Jitter; Linear particle accelerator; Magnets; Particle beams; Radio frequency; Tail; Temperature;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505373
