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TY - CONF AU - He, T.L. AU - Xu, H. AU - Xu, W. AU - Zhang, S.C. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Design of the Magnets of the Far-Infrared FEL Project at NSRL J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - This paper describes the magnetic design of the magnets of the far-infrared free electron laser at NSRL, including dipole magnets and quadrupole magnets with limited installing space. The dipoles are of three different effective lengths and strengths. All the magnets are designed and optimized by using POSSION and OPERA-3D. The end shimming and chamfer are modeled and fully determined by 3D simulation to meet the field uniformity requirement. The design consideration and simulation results are presented in detail. PB - JACoW CP - Geneva, Switzerland SP - 3269 EP - 3271 KW - dipole KW - quadrupole KW - simulation KW - FEL KW - electron DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-THPMB021 UR - http://jacow.org/ipac2016/papers/thpmb021.pdf ER -