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TY - CONF AU - Jang, S.W. AU - Bambade, P. AU - Blanco-García, O.R. AU - Bogard, F. AU - Honda, Y. AU - Hwang, J.G. AU - Kim, E.-S. AU - Lee, L. AU - Okugi, T. AU - Tauchi, T. AU - Terunuma, N. AU - Wallon, S. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - The High Position Resolution Cavity BPM Developments and Measurement for ILC Final Focus System J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - An ultra high position resolution cavity BPM was developed for the final focus system of ATF2, which is a accelerator test facility for ILC final focus system. The main purpose of ATF2 are achievement of 37 nm beam size and nano-meter beam orbit stability at IP(Interaction Point). For these purposes, a few nano meter beam position resolution was required for this cavity BPM, which is called the IP-BPM. The IP-BPM was fabricated 2 blocks of IP-BPM, the first block consists of two cavities in one block and second block consists of single cavity. IP-BPM can measure beam position in vertical and horizontal independently by using rectangular shape single cavity. Three IP-BPMs were installed at ATF IP region inside IP-chamber, and its position resolution was measured. We will present the detailed results on the beam tests. PB - JACoW CP - Geneva, Switzerland SP - 3599 EP - 3601 KW - cavity KW - electronics KW - resonance KW - alignment KW - operation DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-THPME147 UR - http://jacow.org/ipac2014/papers/thpme147.pdf ER -