21 T superconducting magnet system at TML

Abstract

A 21 T superconducting magnet system is one of the major high field facilities of the Tsukuba Magnet Laboratories (TM L). Before its installation at the TML, this magnet succeeded in generating fields over 21 T in the fully superconducting state. In the beginning of 1994, the whole system was moved to the TML and combined with a refrigeration system. Regular operations have been performed since May 1994. Continuous improvements have been made to generate higher fields in larger space. In October 1994, this magnet could generate a field of 21.1 T in a 61 mm clear bore. In this paper, the present status of the 21 T superconducting magnet system is reported with our future plans.