Design of HTSC Undulator Magnet Array Based on Simulation of Magnetization Process

Abstract

As one of the next generation FEL technologies, staggered array undulator (SAU) made by high Tc superconductor (HTSC) is developed to achieve small size and high intensity magnetic field undulator. In use of superconductor magnet, it is very difficult to adjust the magnet array of the undulator after HTSC magnetization since the entire undulator is installed inside a cryostat, therefore appropriate magnet alignment has to be determined before the magnetization. This paper presents a development of a numerical simulation code of the SAU magnetization process for assisting the design of an optimal size and alignment of the SAU magnets.