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@unpublished{marti:ibic2021-mooc01, author = {Z. Martí and G. Benedetti and A. Franchi and U. Iriso and E. Morales}, title = {{Fast Beam-Based Alignment Using AC Excitations}}, booktitle = {Proc. IBIC'21}, language = {english}, intype = {presented at the}, series = {International Beam Instrumentation Conference}, number = {10}, venue = {Pohang, Rep. of Korea}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {10}, year = {2021}, note = {presented at IBIC'21 in Pohang, Rep. of Korea, unpublished}, abstract = {{Fast beam-based alignment (BBA) of BPMs and quadrupole magnets was evolved and demonstrated at ALBA*. A conventional BBA method makes a local bump, change quadrupole strength, and measure COD by the quadrupole, which is very time-consuming. However, the fast BBA using AC excitations of corrector magnets can quickly measure the displacement between a BPM and a quadrupole. In the case of ALBA, the BBA duration was reduced from 5 hours to 10 minutes. The accuracy was the same as the conventional BBA (~10 um). This fast BBA method will help the alignment of BPMs in 3rd and 4th generation light sources.}}, }