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TY - CONF AU - Bahrdt, J. AU - Bäcker, H.-J. AU - Frentrup, W. AU - Gottschlich, S. AU - Rethfeldt, C. AU - Scheer, M. AU - Schulz, B. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - A Canted Double Undulator System With a Wide Energy Range for EMIL 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 - At BESSY II a canted double undulator system for the Energy Materials In-situ Laboratory EMIL is under construction. The energy regime is covered with two undulators, an APPLE II undulator for the soft and a cryogenic permanent magnet undulator CPMU17 for the hard photons. The layout and the performance of the undulators are discussed in detail. The minimum of the vertical betatron function is shifted to the center of the CPMU17. The neighboring quadrupoles and an additional quadrupole between the undulators control the vertical betatron function. Prior to the undulator installation a testing chamber with four movable scrapers has been implemented at the CPMU17 location. Utilizing the scrapers the new asymmetric lattice optics is tested and evaulated. PB - JACoW CP - Geneva, Switzerland SP - 1442 EP - 1444 KW - undulator KW - photon KW - optics KW - betatron KW - permanent-magnet DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPWA019 UR - http://jacow.org/ipac2015/papers/tupwa019.pdf ER -