Phys. Rev. ST Accel. Beams 8, 084001 (2005) [6 pages]Measurement of IR optics with linear coupling’s action-angle parametrizationSee Also: Publisher's Note
Linear coupling’s action-angle parametrization is convenient for interpretation of turn-by-turn beam position monitor (BPM) data. We demonstrate how to apply this parametrization to extract Twiss and coupling parameters in interaction regions (IRs), using BPMs on each side of a long IR drift region. Example data were acquired at the Relativistic Heavy Ion Collider, using an ac dipole to excite a single transverse eigenmode. We have measured the waist of the β function and its Twiss and coupling parameters. 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.8.084001
DOI:
10.1103/PhysRevSTAB.8.084001
PACS:
29.20.Dh, 29.27.Bd
See AlsoPublisher's Note: Y. Luo, M. Bai, F. Pilat, T. Satogata, and D. Trbojevic, Publisher’s Note: Measurement of IR optics with linear coupling’s action-angle parametrization [Phys. Rev. ST Accel. Beams 8, 084001 (2005)], Phys. Rev. ST Accel. Beams 8, 089901 (2005). |
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