POSITIONING MECHANISM OF CRYOCOOLER FOR MAGNETIC RESONANCE IMAGING

摘要

PROBLEM TO BE SOLVED: To prevent dislocation of alignment against force of the interaction of a magnetic field of a superconducting magnet and a cryocooler, and to guarantee excellent thermal contact in a thermal interface of the cryocooler. SOLUTION: Insertion of a cryocooler 10 into a sealed cavity 22 of a recondensing superconducting magnet 30 is supported in superconducting operation by an inserting/positioning mechanism using a combination 82 of a guide assembly 52 and a sliding piece assembly 70.