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TY - CONF AU - van Riesen-Haupt, L. AU - Coello de Portugal, J.M. AU - Fol, E. AU - Seryi, A. AU - Tomás, R. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - K-Modulation Developments via Simultaneous Beam Based Alignment in the LHC J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - A parasitic effect of k-modulation is that if the modulated quadrupole has an offset the modulation results in a dipole like kick forcing the beam on a new orbit. This paper presents a new method using the orthonormality of singular value decomposition that uses this new orbit to estimate the offset. This could be used to measure misalignments or crossing angles but could also help improve k-modulation \beta measurements by predicting the parasitic tune change caused by the new orbit not passing through the centre of the sextupoles. PB - JACoW CP - Geneva, Switzerland SP - 2159 EP - 2162 KW - quadrupole KW - optics KW - sextupole KW - closed-orbit KW - simulation DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-TUPVA042 UR - http://jacow.org/ipac2017/papers/tupva042.pdf ER -