Displacer and superconducting magnet

摘要

A displacer for adjusting a level of a liquid cryogen in a cryostat. The displacer including an expandable member at least partially defining a sealed chamber. The expandable member being configured to transition from a collapsed state where the sealed chamber has a smaller volume to an expanded state where the sealed chamber has a larger volume. The displacer includes a first end piece attached to a first end of the expandable member and a second end piece attached to a second end of the expandable member.

主权项

1. A displacer for adjusting a level of a liquid cryogen in a cryostat comprising:
an outer housing; an inner bellows disposed within the outer housing, said inner bellows configured to change from a collapsed state to an expanded state; a first end piece attached to a first end of the inner bellows, said first end piece configured to move with respect to the outer housing as the inner bellows changes from the collapsed state to the expanded state; a second end piece attached to a second end of the inner bellows; and an outer bellows attached to the outer housing and at least one of the first end piece and the inner bellows; wherein the first end piece, the second end piece, and the inner bellows define a sealed chamber.