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TY - CONF AU - Aiba, M. AU - Ehrlichman, M.P. AU - Streun, A. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Round Beam Operation in Electron Storage Rings and generalisation of Mobius accelerator J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - A better performing photon beam can be obtained from light sources when the eletron beam is formed into a "round beam" rather than a flat beam. It is realised by equally distributing the natural emittance into the horizontal and vertical planes. There are a few approaches for the emittance distribution, and we explored the so-called Mobius accelerator scheme, where a transverse (horizontal-vertical) emittance exchange results at each turn of beam revolution. The original proposal of Mobius accelerator was based on a set of five succesive skew quadruples, requiring a dedicated long straight section. We generalise the Mobius accelerator section to find more convenient configurations. Applications to a light source storage ring lattice and some tracking results are also presented. PB - JACoW CP - Geneva, Switzerland SP - 1716 EP - 1719 KW - quadrupole KW - emittance KW - insertion KW - injection KW - lattice DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPJE045 UR - http://jacow.org/ipac2015/papers/tupje045.pdf ER -