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公开(公告)号：US20170287608A1
公开(公告)日：2017-10-05
申请号：US15466999
申请日：2017-03-23
发明人： Atsuko OKA
摘要： A superconducting magnet device includes a superconducting coil, a radiation shield, a vacuum case, an electrode member, and a conductive member. The conductive member includes an oxidized lead disposed in the radiation shield. The vacuum case includes a case body having an outer opening and an outer lid that is detachably attachable to the case body. The radiation shield includes a shield body having an inner opening and an inner lid that is detachably attachable to the shield body. The inner opening is formed in the region of the shield body that overlaps a portion of the outer opening when viewed in the direction from the outer opening to the oxidized lead.
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公开(公告)号：US20170287606A1
公开(公告)日：2017-10-05
申请号：US15466967
申请日：2017-03-23
发明人： Hitoshi MIYATA , Atsuko OKA
CPC分类号： H01F6/04 , F25B9/10 , F25D19/006
摘要： A method for maintaining a refrigeration unit includes a connecting step of connecting a refrigerator body to a vacuum case with a first cooling stage in thermal contact with a radiation shield, where in the connecting step, the fastening force of the fastening member is adjusted such that the temperature of the first cooling stage becomes a target temperature.
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公开(公告)号：US20170294256A1
公开(公告)日：2017-10-12
申请号：US15470187
申请日：2017-03-27
发明人： Atsuko OKA , Shota KANAI
CPC分类号： H01F6/06 , G01R33/3802 , H01F6/04
摘要： A superconducting magnet device includes a vacuum container having a tubular barrel portion; a magnet assembly including a superconducting coil, a refrigerant tank, and a radiation shield, the magnet assembly being housed in the vacuum container; a supporting block fixed to the barrel portion and protruding beyond the barrel portion to the inside of the vacuum container; and a connecting portion which connects the magnet assembly and the supporting block to each other such that the magnet assembly is spaced apart from the barrel portion within the vacuum container. The connecting portion has thermal conductivity lower than thermal conductivity of the supporting member. The supporting member receives weight of the magnet assembly via the connecting portion while protruding inwardly beyond at least an outer circumference surface of the radiation shield of the magnet assembly.
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公开(公告)号：US20170287607A1
公开(公告)日：2017-10-05
申请号：US15466989
申请日：2017-03-23
发明人： Atsuko OKA
摘要： A superconducting magnet device includes a superconducting coil, a radiation shield, a refrigeration unit, a vacuum case, an electrode member, and a conductive member. The vacuum case includes a case body housing the superconducting coil and a surrounding cover that surrounds the refrigeration unit. The conductive member includes a contact portion having a sleeve-shaped outer circumferential face and thermally contactable with an inner face of the surrounding cover via an insulating material. The surrounding cover includes a heat radiating part including at least a surface of a portion of the surrounding cover overlapping the contact portion in a radial direction of the surrounding cover. Thermal conductivity of the heat radiating part is higher than thermal conductivity of stainless steel.
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