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TY - CONF AU - Christou, C. AU - Day, A.G. AU - Gu, P. AU - Hammond, N.P. AU - Kay, J. AU - Maddock, M. AU - Marten, P.J. AU - Pande, S.A. AU - Rankin, A.F. AU - Spink, D. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - A Hybrid Superconducting/Normal Conducting RF System for the Diamond Light Source Storage Ring J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - 300 mA beam in the Diamond Light Source storage ring is presently maintained by two 500 MHz superconducting CESR-B cavities. Cavity reliability is acceptable at modest operating voltages up to 1.4 MV per cavity but falls off rapidly beyond this value. The installation of an extra cavity or cavities would reduce the voltage demand on the current superconducting cavities and also the operating power level of the high power amplifiers, with commensurate improvement in machine reliability. Furthermore, two superconducting cavity failures in recent years have resulted in machine down-time and reduced-current operation and repair has proven to be prolonged and expensive. It is therefore planned to install two normal conducting cavities into the ring to support operation of the superconducting cavities and to act as a safeguard against any future superconducting cavity failures. Details are presented in this paper of plans and progress towards the installation of the hybrid RF system. PB - JACoW CP - Geneva, Switzerland SP - 2950 EP - 2952 KW - cavity KW - operation KW - storage-ring KW - vacuum KW - HOM DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-WEPOW047 UR - http://jacow.org/ipac2016/papers/wepow047.pdf ER -