High-temperature superconductors (HTS) have a much larger thermal margin than low-temperature superconductors (LTS) due to high critical temperature and high upper critical field. It allows HTS magnets to operate stably so as to tolerate very high heat loads due to radiation. Therefore research on development of HTS quadruple magnet is progressed widely. The Quadruple magnets are used for focusing the transporting beams of particles in accelerator. In order to focus the beam, the quadrupole has iron yoke with hyperbolic contour. However the iron yoke induce nonlinear magnetic characteristics due to saturation. Therefore, an air-core HTS quadruple magnet is proposed to improve the magnetic characteristics. In this paper, we design air-core and iron-core HTS quadruple magnet. The field gradient and effective length of both magnets is 12.1 T/m and 550 mm, respectively. In order to verify the feasibility of proposed air-core quadruple magnet, the magnetic field gradient, field uniformity and effective length are analyzed with operating current from 50 to 400 A.
|Submitters Country||Republic of Korea|