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TY - CONF AU - Alves, D. AU - Gąsior, M. AU - Lefèvre, T. ED - Schaa, Volker RW ED - Jansson, Andreas ED - Shea, Thomas ED - Olander, Johan TI - Analysis of Quadrupolar Measurements for Beam Size Determination in the LHC J2 - Proc. of IBIC2019, Malmö, Sweden, 08-12 September 2019 CY - Malmö, Sweden T2 - International Beam Instrumentation Conferenc T3 - 8 LA - english AB - Due to limitations with non-invasive beam size diagnostics in the LHC, particularly during the energy ramp, there has been an interest to explore quadrupolar-based measurements for estimating the transverse beam size, and hence determining the transverse emittance. This technique is especially attractive as it is completely passive and can use the existing beam position instrumentation. In this work, we perform an analysis of this method and present recent measurements taken during energy ramps. Quadrupolar-based measurements are compared with wire-scanner measurements and a calibration strategy is proposed to overcome present limitations. PB - JACoW Publishing CP - Geneva, Switzerland SP - 397 EP - 401 KW - emittance KW - electron KW - electronics KW - pick-up KW - multipole DA - 2019/11 PY - 2019 SN - 2673-5350 SN - 978-3-95450-204-2 DO - doi:10.18429/JACoW-IBIC2019-TUPP034 UR - http://jacow.org/ibic2019/papers/tupp034.pdf ER -