SUPERCONDUCTING ACCELERATOR

摘要

This superconducting accelerator comprises: an accelerating cavity that forms a space in which a charged particle beam is accelerated in a superconducting state; and a refrigerant vessel (11) that is disposed on the outer peripheral side of the acceleration cavity and in which a refrigerant for cooling the accelerating cavity is filled in a gap to the accelerating cavity. The superconducting accelerator further comprises a pair of pressing members (21) that are provided on the outer peripheral section of the refrigerant vessel (11) and are respectively provided to both end sections of the charged particle beam in the beam axis direction in the acceleration cavity or to both end sections in a direction orthogonal to the beam axis direction. The superconducting accelerator further comprises: a wire (22) that is continuously provided on the outer peripheral section of the refrigerant vessel (11) and that generates tension in a direction that brings the pair of pressing members (21) closer to each other; and a tension adjustment part (25) that adjusts the tension generated by the wire (22).