Circuit analysis of shielding current density in HTS film and its application

Article type: Research Article

Authors: Takayama, Teruou^a; | Saitoh, Ayumu^a | Kamitani, Atsushi^a

Affiliations: [a] Yamagata University, Yonezawa, Japan

Correspondence: [*] Corresponding author: Teruou Takayama, Graduate School of Science and Engineering, Yamagata University, Johnan, Yonezawa, 992-8510, Japan. E-mail: takayama@yz.yamagata-u.ac.jp

Abstract: The acceleration performance of the pellet injection system by using the high-temperature superconducting (HTS) linear acceleration (SLA) to fuel the nuclear fusion reactor has been investigated numerically. To this end, the equivalent circuit model has been developed for analyzing the shielding current density in the HTS film. By using the model, the pellet injection system has been simulated. The results of the computations show that the acceleration performance depends on the parameter of the accelerating coil and the propulsion HTS film. Consequently, the pellet can be accelerated to about 2 km/s with the acceleration of 2 s. This acceleration speed of the SLA is about 1.7 times as great as that of the conventional pellet injection system.

Keywords: Accelerator magnets, circuit analysis, superconducting linear accelerators

DOI: 10.3233/JAE-171207

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 1, pp. 173-179, 2019