Phys. Rev. ST Accel. Beams 8, 042801 (2005) [7 pages]Observation of transverse quadrupolar tune shifts in the Photon Factory storage ring
The frequencies (tunes) of transverse quadrupolar oscillations were measured in the 2.5-GeV Photon Factory storage ring at the High Energy Accelerator Research Organization (KEK). As a result, remarkable shifts in the quadrupolar frequencies with the bunch current were found; they were both positive and negative in the horizontal and vertical directions, respectively. This result can be explained by a focusing effect due to short-range wakefields containing a quadrupolar component. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevSTAB.8.042801
DOI:
10.1103/PhysRevSTAB.8.042801
PACS:
29.27.Bd, 29.20.Dh
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