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TY - CONF AU - Alexopoulos, A. AU - Barschel, C. AU - Bay, A. AU - Blanc, F. AU - Bravin, E. AU - Bregliozzi, G. AU - Chritin, N. AU - Dehning, B. AU - Ferro-Luzzi, M. AU - Gianì, S. AU - Giovannozzi, M. AU - Girard, O. AU - Greim, R. AU - Haefeli, G.J. AU - Hopchev, P. AU - Jacobsson, R. AU - Jensen, L.K. AU - Jones, O.R. AU - Kain, V. AU - Karpinski, W. AU - Kirn, T. AU - Kuonen, A. AU - Matev, R. AU - Nakada, T. AU - Rihl, M.N. AU - Salustino Guimaraes, V. AU - Schael, S. AU - Schneider, O. AU - Schultz von Dratzig, A. AU - Schwering, G. AU - Tobin, M. AU - Veness, R. AU - Veyrat, Q.D. AU - Vlachos, S. AU - Wlochal, M. AU - Würkner, B. AU - Xu, Z. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - First LHC Transverse Beam Size Measurements With the Beam Gas Vertex Detector J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - The Beam Gas Vertex detector (BGV) is an innovative beam profile monitor based on the reconstruction of beam-gas interaction vertices which is being developed as part of the High Luminosity LHC project. Tracks are identified using several planes of scintillating fibres, located outside the beam vacuum chamber and perpendicular to the beam axis. The gas pressure in the interaction volume is adjusted such as to provide an adequate trigger rate, without disturbing the beam. A BGV demonstrator monitoring one of the two LHC beams was fully installed and commissioned in 2016. First data and beam size measurements show that the complete detector and data acquisition system is operating as expected. The BGV operating parameters are now being optimised and the reconstruction algorithms developed to produce accurate and fast reconstruction on a CPU farm in order to provide real time beam profile measurements to the LHC operators. PB - JACoW CP - Geneva, Switzerland SP - 1240 EP - 1243 KW - detector KW - target KW - hardware KW - vacuum KW - data-acquisition DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-TUOAB1 UR - http://jacow.org/ipac2017/papers/tuoab1.pdf ER -