Physics – Accelerator Physics
Scientific paper
2001-11-26
eConf C011127:WECT006,2001
Physics
Accelerator Physics
LaTeX, 3 pages, 4 figures, ICALEPCS2001, WECT006, http://www-linac.kek.jp/linac-paper/
Scientific paper
In order to double the positron injection rate into the KEKB ring, a two-bunch acceleration scheme has been studied at the linac, in which bunches separated by 96 ns are accelerated in 50 Hz. In this scheme the stabilization of energy and orbit of each bunch is indispensable. Thus the beam energy and orbit feedback systems have been upgraded. Since beam characteristics are acquired through beam position monitors (BPM), their read-out system was improved to meet two-bunch requirements. Combined waveforms from BPM's were adjusted with delay cables avoiding overlaps and they enabled simultaneous measurement of beam positions of two bunches. The beam energies of two bunches were balanced by tuning rf pulse timings, and the average energy was stabilized by adjusting the accelerating rf phases. The average beam orbits were also stabilized. Slow feedback systems at the injector section for charge and bunching stabilities are being planned as well. These systems were used successfully in the test beams and will be employed in the routine operation.
Furukawa Katsuhisa
Kamikubota N.
Obata Toshiaki
Suwada Tsuyoshi
No associations
LandOfFree
Beam Feedback Systems and BPM Read-out System for the Two-Bunch Acceleration at Kekb Linac does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Beam Feedback Systems and BPM Read-out System for the Two-Bunch Acceleration at Kekb Linac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam Feedback Systems and BPM Read-out System for the Two-Bunch Acceleration at Kekb Linac will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-220860