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@inproceedings{mingyao:ipac2021-tupab368,
author = {M.Y. Mingyao and G.Y. Feng and Z.L. Ren and H. Xu},
title = {{Design of the Longitudinal Gradient Dipole Magnets for HALF}},
booktitle = {Proc. IPAC'21},
pages = {2378--2380},
eid = {TUPAB368},
language = {english},
keywords = {dipole, permanent-magnet, storage-ring, lattice, emittance},
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-TUPAB368},
url = {https://jacow.org/ipac2021/papers/tupab368.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB368},
abstract = {{Hefei Advanced Light Facility (HALF) is the fourth generation diffraction-limited storage ring light source project in China. The lattice of the storage ring consists of six different dipoles with longitudinal gradients. The longitudinal-gradient dipoles (LGBs) are permanent magnets. This paper presents the designed construction of LGBs and the magnetic field results using OPERA3D. By optimizing the shape of the polar surface, the magnetic field uniformity is optimized to about 5×10⁻⁴. With some movable adjusting block, the magnetic field can be controlled accurately. The temperature stability of the magnet is better than 0.0074 T*mm/°C by setting temperature compensating shunt.}},
}