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TY - CONF AU - Zhao, Z.F. AU - Chen, Q.S. AU - Chen, W. AU - Hu, S. AU - Liu, X. AU - Qin, B. AU - Wei, W. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Comparison of Two Types of Steerers Applied in Proton Therapy Gantry J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - A proton therapy project HUST-PTF (HUST Proton Therapy Facility) based on a 250MeV isochronous superconducting cyclotron is under development in Huazhong University of Science and Technology (HUST). Based on the optics design of the gantry, the steering magnets need to be placed in a compact structure, as well as meet the magnetic field requirement with a maximum deflection angle of ±5mrad@250MeV. In the paper, two types of steerers (O-shape and H-shape) were introduced and discussed in detail. The magnetic fringe field interference effects between quadrupoles and steerers were studied by using OPERA/TOSCA code. The result based on the contrastive analysis will give us a valuable reference to choose suitable steerers for proton therapy beamline. PB - JACoW Publishing CP - Geneva, Switzerland SP - 488 EP - 490 KW - quadrupole KW - proton KW - simulation KW - superconductivity KW - radiation DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-MOPML039 UR - http://jacow.org/ipac2018/papers/mopml039.pdf ER -