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| MOPA13 |
Fast Luminosity Monitoring for the SuperKEKB Collider (LumiBelle2 Project) |
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- C.G. Pang, P. Bambade, S. Di Carlo, D. Jehanno, V. Kubytskyi, Y. Peinaud, C. Rimbault
LAL, Orsay, France
- Y. Funakoshi, S. Uehara
KEK, Ibaraki, Japan
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LumiBelle2 is a fast luminosity monitoring system prepared for SuperKEKB. It uses sCVD diamond detectors placed in both the electron and positron rings to measure the Bhabha scattering process at vanishing scattering angle. Two types of online luminosity signals are provided, a Train-Integrated-Luminosity at 1 kHz as input to the dithering feedback system used to maintain optimum overlap between the colliding beams in horizontal plane, and Bunch-Integrated-Luminosities at about 1 Hz to check for variations along the bunch trains. Individual beam sizes and offsets can also be determined from collision scanning. This paper will describe the design of LumiBelle2 and report on its performance during the Phase-2 commissioning of SuperKEKB.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-MOPA13
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| About • |
paper received ※ 04 September 2018 paper accepted ※ 11 September 2018 issue date ※ 29 January 2019 |
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