Phys. Rev. ST Accel. Beams 11, 050701 (2008) [9 pages]Vertical-beam emittance correction with independent component analysis methodReceived 17 December 2007; published 15 May 2008 The vertical-beam emittance in an electron storage ring is mainly determined by two factors: the linear betatron coupling and the spurious vertical dispersion generated by magnet errors. We find that the contribution of spurious vertical dispersion is larger than that generated by the linear betatron coupling. Using the independent component analysis (ICA) method, we develop stop band corrections to reduce the vertical emittance. We demonstrate our method by making ICA and correction to a quadruple-bend achromatic low emittance lattice. Six families of skew quadrupoles can effectively minimize both the vertical dispersion and the linear betatron coupling. ©2008 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.11.050701 [ Abstract | Previous article | Next article | Issue 5 ] |
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