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@inproceedings{xu:ipac2021-thpab073, author = {J.H. Xu and Z.H. Bai and Z.L. Ren and J.J. Tan and P.H. Yang and Q. Zhang}, title = {{Study of Seven-Bend-Achromat Lattice Option for Half}}, booktitle = {Proc. IPAC'21}, pages = {3926--3928}, eid = {THPAB073}, language = {english}, keywords = {lattice, emittance, storage-ring, octupole, sextupole}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-THPAB073}, url = {https://jacow.org/ipac2021/papers/thpab073.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB073}, abstract = {{A seven-bend-achromat (7BA) storage ring lattice design for Hefei Advanced Light Facility (HALF) with a beam energy of 2.2 GeV and a circumference of 388.8 m is presented. The 7BA lattice is designed with the combined function bends and reverse bends which has a natural emittance of about 67 pm·rad. Two lattice candidates with different tunes have been selected. One lattice has better nonlinear dynamic performance for off-axis injection. The other lattice provides lower beta functions at the center of straight sections. The results of these studies are discussed in this paper.}}, }