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TY - CONF AU - Goslawski, P. AU - Feikes, J. AU - Holldack, K. AU - Jankowiak, A. AU - Ovsyannikov, R. AU - Ries, M. AU - Ruprecht, M. AU - Schälicke, A. AU - Wüstefeld, G. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Resonance Island Experiments at BESSY II for User Applications J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - Beam storage close to a tune resonance (Qx = 1/3, 1/4) can generate resonance island buckets in the x,x' phase space providing a second stable island orbit winding around the standard orbit. Experiments with such an operation mode have been conducted at BESSY II and the Metrology Light Source (MLS)*,**. The two orbits are well separated, with good life time and stability. Such operation mode will offer additional operation flexibility and allows users to choose their radiation source point from one or the other orbit. It has the potential to fulfill simultaneously conflicting user demands, e.g., high vs. low beam current and single or few bunch filling vs. multibunch filling. We discuss the required beam optics setup and present successful measurements taken at photon beamlines at BESSY II. PB - JACoW CP - Geneva, Switzerland SP - 3427 EP - 3430 KW - undulator KW - photon KW - operation KW - resonance KW - experiment DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-THPMR017 UR - http://jacow.org/ipac2016/papers/thpmr017.pdf ER -