| Paper |
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| WEPGW052 |
A Rotation Method to Calibrate BPM Electric Offsets |
2595 |
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- M.W. Wang, X. Guan, P.F. Ma, X.W. Wang, S.X. Zheng
TUB, Beijing, People’s Republic of China
- M.T. Qiu, D. Wang, Z.M. Wang
NINT, Shannxi, People’s Republic of China
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Beam position monitor is a key instrument for machine commissioning. To measure beam position accurately, offline calibrations to acquire the sensitivity and offsets of the BPM are essential prerequisites. A new method to calibrate the BPM electric offset is proposed in this paper. By measuring the location variation of the BPM electric center after rotatingtheBPM180degrees, theBPMoffsetcanbederived. The method is more convenient, universal and accurate than the traditional methods. The method is successfully applied to calibrate the button BPM of Xi’an Proton Application Facility. The repetitive measurement error is 20.8 um.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-WEPGW052
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| About • |
paper received ※ 16 April 2019 paper accepted ※ 20 May 2019 issue date ※ 21 June 2019 |
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