Abstract
Recently, a global feedback of beam position was switched on at SOR-RING of Tokyo University. At a low beam current, the vertical orbit drift was suppressed almost within a few μm and the horizontal orbit drift within several μm. On the other hand, the suppression became worse at a high current because of a longitudinal instability, which deteriorated the accuracy of the beam position monitor system. It was also observed that at 21 Hz, the repetition rate of the electron synchrotron close to SOR-RING, the horizontal orbit tends to vibrate uniformly around the ring, i.e., monopolelike expansion and contraction, while the vertical orbit has a dipolelike vibration; a result expected if a uniform magnetic field is impressed on the ring.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
