Apparatus for observing a superconductive phenomenon in a superconductor

摘要

A first transparent container (52;61) for containing a superconductor (55) and a coolant (53), a second transparent container (60;63) for containing the first container in such an airtight state that a dried inactive gas flowed thereinto is kept a pressure higher than the external pressure, and a heat-insulator (54;64) arranged between the first and second containers.