EXTERNAL MAGNETIC FIELD AND THERMAL SHOCK RELIEVING HIGH-TEMPERATURE SUPERCONDUCTING MAGNETIC SHIELD BUSHING

摘要

PURPOSE:To relieve the influence of an external magnetic field on a magnetic shielding body which blocks the intrusion of the external magnetic field and a current flowing body and thermal shocks received by the bodies from a cooling liquid in a magnetic shield bushing constituted of a high-temperature superconducting material. CONSTITUTION:In this bushing which is constituted to cool a current flowing body 6 which electrically connects an external power supply device with equipment 3 applying superconduction and a magnetic shield body 7 which shields external magnetic fields which affect the body 6 with a cooling liquid, the bodies 7 and 6 are surrounded by an external magnetic field and thermal shock relieving body 19 in order to relieve the influence of external magnetic fields on the bodies 7 and 6 and thermal shocks received by the bodies 7 and 6 at the time of injecting a cooling liquid.