標題: Design Improvement of a Staggered YBCO Undulator
作者: Chen, S. D.
Chiang, C. A.
Yang, C. M.
Yang, C. K.
Luo, H. W.
Jan, J. C.
Chen, I. G.
Chang, C. H.
Hwang, C. S.
電子物理學系
Department of Electrophysics
關鍵字: Bulk YBCO;staggered undulator;HTS;Superconducting;Bean's model;Energy-minimization method
公開日期: 1-Apr-2018
摘要: A strong field and short period undulator can be a desirable light source device in a storage ring or a free-electron laser. Bulk YBCO can be used to construct a high-temperature-superconducting undulator in a staggered array structure. The YBCO material in form of 32 mm diameter and 2.5 mm thick was used to assemble a staggered magnet array. The period length is 5 mm and the magnet gap is 4 mm. To estimate the strength of a sinusoidal field and to optimize the end-pole design to minimize the first (i.e., electron angle) and second field integral (electron position), an energy-minimization method (EM-method) based on Bean's model to simulate the field trapped in the HTS-Block is introduced. In this paper, we focus on promoting the practical value of the EM-method simulation. Combining the experimental experience of a YBCO staggered undulator and the simulation experience based on the EM-method, we address some issues to enhance the efficacy of this undulator design.
URI: http://dx.doi.org/10.1109/TASC.2018.2791981
http://hdl.handle.net/11536/144668
ISSN: 1051-8223
DOI: 10.1109/TASC.2018.2791981
期刊: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Volume: 28
Appears in Collections:Articles