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TY - CONF AU - Papash, A.I. AU - Blomley, E. AU - Boltz, T. AU - Brosi, M. AU - Bründermann, E. AU - Casalbuoni, S. AU - Gethmann, J. AU - Huttel, E. AU - Kehrer, B. AU - Mochihashi, A. AU - Müller, A.-S. AU - Ruprecht, R. AU - Schuh, M. AU - Steinmann, J.L. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - New Operation Regimes at the Storage Ring KARA at KIT J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The storage ring Karlsruhe Research Accelerator (KARA) at KIT operates in a wide energy range from 0.5 to 2.5 GeV. Initially, the ring was designed to serve as a Light Source for synchrotron radiation facility ANKA. Since then different operation modes have been implemented at KARA: in particular, the double bend achromat (DBA) lattice with non-dispersive straight sections, the theoretical minimum emittance (TME) lattice with distributed dispersion, and different versions of low compaction factor optics with highly stretched dispersion function. Short bunches of a few ps pulse width are available at KARA. Low alpha optics have been tested and implemented in a wide operational range of the ring and are now routinely used at 1.3 GeV for studies of CSR-induced beam dynamics and THz bursting in the micro-bunching instability. Different non-linear effects, in particular, residual high order components of magnetic fields generated in insertion devices have been studied and cured. A new operation mode at high vertical tune implemented at KARA essentially improves beam performance during user operation as well as at low alpha regimes. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1422 EP - 1425 KW - lattice KW - optics KW - operation KW - injection KW - simulation DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPGW016 UR - http://jacow.org/ipac2019/papers/tupgw016.pdf ER -