LIQUID HELIUM RECONDENSER TO REDUCE MRI OPERATING COST

液氦再冷凝器可降低 MRI 运行成本

基本信息

  • 批准号:
    6294627
  • 负责人:
  • 金额:
    $ 37.99万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    1998
  • 资助国家:
    美国
  • 起止时间:
    1998-09-28 至 2003-07-31
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (Applicant's abstract verbatim): The cooling of high-field super conducting magnets adds an additional component to the operating cost of MRI: the cost of replenishing the liquid helium cryogen that is continuously lost to boil-off. Chesapeake Cryogenics proposes to construct a recondenser that will liquefy helium gas, enabling its re-use, and thereby lowering the total operating cost of MRI. The recondenser borrows heavily on a new, patented refrigeration scheme called the BOREAS cycle. As well as using proven refrigeration cycles and components to achieve its goal of 2 watts at 4K. Its advantages include low vibration, the capability to move much of the mechanism up to 60 feet from the MRI unit, and lower power usage than other refrigerator-types. The proposed recondenser will eliminate the need for liquid helium replenishment in existing MRI systems with a minimum of modifications to the MRI unit. In the Phase I project Chesapeake Cryogenics has established the feasibility of a recondenser through design, simulation and experimentation of the recondenser performance. The resulting recondenser will be retrofitable on a wide variety of MRI magnet systems both stationary and mobile and has the design flexibility to meet the cryogenic needs of most units now in service world wide. In Phase II Chesapeake Cryogenics will construct the complete optimized recondenser and demonstrate its performance on a commercial MRI unit. PROPOSED COMMERCIAL APPLICATION: The proposed liquid helium recondenser will lower the operating cost of high-field MRI. It will also enable new MRI systems that employ superconducting magnets, but do not require the replenishment of any cryogens.
描述(申请人的摘要逐字):高场超级冷却 导电磁体增加了MRI操作成本的额外部分: 补充不断损失的液氦制冷剂的成本, 汽化切萨皮克低温技术公司提议建造一个再冷凝器,该冷凝器将 减少氦气,使其能够重复使用,从而降低总 MRI的运行成本。再冷凝器大量借用了一种新的专利技术, 制冷系统称为BOREAS循环。除了使用经过验证的 制冷循环和组件,以实现其目标的2瓦在4K。其 优点包括低振动,移动大部分机构的能力, 距离MRI设备最远60英尺, 冰箱类型。建议的再冷凝器将消除对液体的需要, 现有MRI系统中的氦补充, MRI单元。在第一阶段项目中,切萨皮克Cryogenics已经建立了 通过设计、模拟和实验确定再冷凝器的可行性 再冷凝器的性能。由此产生的再冷凝器将在 固定的和移动的的各种MRI磁体系统, 设计灵活,可满足大多数在役机组的低温需求 世界各地。在第二阶段,切萨皮克低温技术公司将建造完整的 优化的再冷凝器,并证明其性能的商业MRI单位。 拟定商业应用: 建议的液氦再冷凝器将降低高场MRI的运行成本。它还将使新的MRI系统采用超导磁体,但不需要补充任何冷冻剂。

项目成果

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MICHAEL J SUPERCZYNSKI其他文献

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{{ truncateString('MICHAEL J SUPERCZYNSKI', 18)}}的其他基金

LIQUID HELIUM RECONDENSER TO REDUCE MRI OPERATING COST
液氦再冷凝器可降低 MRI 运行成本
  • 批准号:
    6529836
  • 财政年份:
    1998
  • 资助金额:
    $ 37.99万
  • 项目类别:
LIQUID HELIUM RECONDENSER TO REDUCE MRI OPERATING COSTS
液氦再冷凝器可降低 MRI 操作成本
  • 批准号:
    2863146
  • 财政年份:
    1998
  • 资助金额:
    $ 37.99万
  • 项目类别:
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