A Conceptual Design of a Conduction-Cooled Magnet for a Superconducting Property Measurement System

We started a new project to develop the conduction-cooled measurement system for superconducting power apparatus. The measurement system is used to acquire electrical and thermal properties on short HTS tape samples and the system is composed of specimen holder for mounting HTS tape and a magnet for applying magnetic fields externally. The magnet consists of two split racetrack windings and is designed to produce maximum 3 T of center field at 20 K. The temperature of specimen holder can be varied in range from 10 K to 77 K. The field homogeneity, which is calculated the maximum magnetic field divided by the center field, is required less than 0.01 within 10 cm axially and 10 mm radially from origin. We have worked on the conceptual designs of the conduction-cooled magnet for the superconducting characteristic measurement system. The measurement system will be fabricated in near future based on the design parameters presented in this paper.