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MOOC01 |
Fast Beam-Based Alignment Using AC Excitations | ||||
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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.
*: Z. Marti et al., Phys. Rev. Accel. Beams 23, 012802 (2020) |
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Slides MOOC01 [3.350 MB] | ||||
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