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TY - CONF AU - Itoga, T. AU - Asano, Y. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Present Status of the Cherenkov Beam Loss Monitor at SACLA J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - Since 2011, high power lasers have been delivered stably to the users at SACLA, the SPring-8 Angstrom compact free electron laser, and the upgrades have been performing to obtain the high quality of the laser continuously. Optical fiber based Cherenkov beam loss monitors have been successfully operated from the commissioning phase. This monitor covers the undulator section of beam lines and the electron beam transporting tunnel from SACLA to SPring-8. This monitor is made good use of not only beam transport but also detection of the small beam loss such as electron halos hitting the magnets of undulator. In this presentation, we will report the present status of the Cherenkov beam loss monitor and its usage experience. PB - JACoW CP - Geneva, Switzerland SP - 1808 EP - 1810 KW - electron KW - undulator KW - detector KW - status KW - laser DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-TUPRI100 UR - http://jacow.org/ipac2014/papers/tupri100.pdf ER -