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TY - CONF AU - Chiu, P.C. AU - Hsu, K.T. AU - Hu, K.H. AU - Huang, C.H. AU - Kuo, C.-C. AU - Liang, C.C. AU - Liu, Y.-C. AU - Tsai, H.-J. AU - Tseng, F.H. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Orbit Correction With Path Length Compensation Based on Rf Frequency Adjusments in TPS J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - The 3 GeV Taiwan Photon Source has been routinely operated for public users since September 2016. Orbit reproducibility and stability are critical for the quality of user experiments. Ambient temperature variations and earth tides can cause a change in circumference, changing in turn the beam energy, and orbit drift. Therefore both, orbit correction and rf frequency adjustments are necessary to keep the ring circumference constant. A Fast Orbit Feedback (FOFB) system combined with rf frequency correction deduced from the fast corrector strengths is applied to the FOFB routine. The correlation between the measured frequency variation with ambient temperature and earth tides is also reported in this article. PB - JACoW CP - Geneva, Switzerland SP - 1553 EP - 1555 KW - operation KW - electron KW - feedback KW - site KW - photon DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-TUPAB103 UR - http://jacow.org/ipac2017/papers/tupab103.pdf ER -