Abstract: According to one embodiment, there is provided a refrigeration system including detectors, each of which detects a phase indicative of a displacement of a displacer of each of cryogenic refrigerators; a processor that calculates an operation frequency of a motor of each of the cryogenic refrigerators, which is a frequency that suppresses oscillations or noises generated by reciprocating motions of the displacer of each of the cryogenic refrigerators, based on a detection result obtained by each of the detectors; and drivers, each of which drives the motor of each of the cryogenic refrigerators based on a calculation result obtained by the processor.

Abstract: A cryogenic cooling apparatus includes: a vacuum container; a first bellows connected to a peripheral portion of an opening provided in the vacuum container; a flange provided at a tip of the first bellows on a side opposite to the opening of the vacuum container and configured to fix a refrigerator; a first sleeve connected to a peripheral edge portion of an opening of the flange, into which the refrigerator is inserted, and configured to form a first accommodation space; a first heat-transfer block provided at a tip of the first sleeve on a side opposite to the flange and thermally connected to the first cooling object by being brought into contact with a first cooling block of the refrigerator; and a second bellows formed in a part of the first sleeve and configured to expand or contract the accommodation space depending on the refrigerator inserted into the accommodation space.

Abstract: A cryogenic cooling apparatus includes: a vacuum container configured to form an airtight space capable of forming a vacuum and accommodate a first cooling object; a first bellows connected to a peripheral portion of an opening provided in the vacuum container and configured to form an expandable and contractible communication space; a flange provided at a tip of the first bellows on a side opposite to the opening of the vacuum container and configured to fix a refrigerator; a first sleeve connected to a peripheral edge portion of an opening of the flange, into which the refrigerator is inserted, and configured to form a first accommodation space; a first heat-transfer block provided at a tip of the first sleeve on a side opposite to the flange and thermally connected to the first cooling object by being brought into contact with a first cooling block of the refrigerator; and a second bellows formed in a part of the first sleeve and configured to expand or contract the accommodation space depending on the ref

Abstract: According to one embodiment, there is provided a refrigeration system including detectors, each of which detects a phase indicative of a displacement of a displacer of each of cryogenic refrigerators; a processor that calculates an operation frequency of a motor of each of the cryogenic refrigerators, which is a frequency that suppresses oscillations or noises generated by reciprocating motions of the displacer of each of the cryogenic refrigerators, based on a detection result obtained by each of the detectors; and drivers, each of which drives the motor of each of the cryogenic refrigerators based on a calculation result obtained by the processor.