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RIS citation export for TUZPLM2: Optics Measurements at SuperKEKB Using Beam Based Calibration for BPM and BBA

TY  - CONF
AU  - Sugimoto, H.
AU  - Koiso, H.
AU  - Mori, K.
AU  - Morita, A.
AU  - Ohnishi, Y.
AU  - Tejima, M.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Optics Measurements at SuperKEKB Using Beam Based Calibration for BPM and BBA
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - 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.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1198
EP  - 1202
KW  - quadrupole
KW  - optics
KW  - betatron
KW  - emittance
KW  - coupling
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUZPLM2
UR  - http://jacow.org/ipac2019/papers/tuzplm2.pdf
ER  -