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| TUZPLM2 |
Optics Measurements at SuperKEKB Using Beam Based Calibration for BPM and BBA |
1198 |
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- H. Sugimoto, H. Koiso, K. Mori, A. Morita, Y. Ohnishi, M. Tejima
KEK, Ibaraki, Japan
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The beam-based calibration(BBC) technique for Beam-Position-Monitor(BPM) is applied in order to establish reliable optics measurement. In the BBC, a response model between beam position, charge and output signals of the BPM electrodes are introduced to calibrate the relative gain of the BPM electrodes. The gains are adjusted by total squares fitting so that the model reproduces the measured BPM signals. The Beam-Based Alignment(BBA) is also performed to determine the magnetic center of a quadrupole. Using BBC and BBA, the performance of the BPM system and optics correction are successfully improved. This talk presents what we experienced during the beam commissioning focusing on beam optics measurement and some details on the beam-based calibration scheme for BPM system.
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Slides TUZPLM2 [15.911 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-TUZPLM2
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| About • |
paper received ※ 15 May 2019 paper accepted ※ 22 May 2019 issue date ※ 21 June 2019 |
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