1. Design Improvement of a Staggered YBCO Undulator.
- Author
-
Chen, S. D., Chiang, C. A., Yang, C. M., Yang, C. K., Luo, H. W., Jan, J. C., Chen, I. G., Chang, C. H., and Hwang, C. S.
- Subjects
YTTRIUM barium copper oxide ,WIGGLER magnets ,SUPERCONDUCTING magnets ,MAGNETIC fields ,SUPERCONDUCTIVITY - Abstract
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-temperaturesuperconducting 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. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF