Acquisition of compact helium re-liquefier for McMaster low-temperature high-field laboratory

为麦克马斯特低温高场实验室采购紧凑型氦再液化器

• 批准号: 358851-2008
• 负责人: Imai, Takashi
• 金额: $ 3.65万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=366087
• 关键词: Acquisition; compact; helium; re; liquefier

This proposal seeks financial support for the acquisition of equipment to re-liquefy helium boil-off from cryogenic equipment.  The reliquefier will be used continuously year-round in McMaster Low-Temperature High-Field Laboratory (Mac LTHF Lab).  I founded Mac LTHF Lab in 2002 in the Brockhouse Institute for Materials Research based on funding from NSERC, CFI (Canadian Foundation for Innovation), OIT (Ontario Innovation Trust), and McMaster, with the total budget exceeding $1,000,000.  It has a wide variety of cryogenic equipment for NMR, transport, ac susceptibility, and high-pressure measurements.  Mac LTHF Lab is by far the biggest user of liquid helium in McMaster.  Currently, our helium liquefier in the Brockhouse Institute is unable to supply sufficient amount of liquid helium when Mac LTHF Lab is operating at the full capacity.  Our recent acquisition of a top-loading dilution refrigerator and a 16 Tesla superconducting magnet will exacerbate the helium shortage in McMaster.  In order to gain the maximum scientific dividend from the large financial investment into Mac LTHF Lab, we need to ensure that affordable and sufficient liquid helium is available on time.  The proposed acquisition will not only resolve the helium shortage issue, but also yield significant savings of the operational cost of Mac LTHF Lab.  The total savings of our operational cost in the coming 5 years will exceed the modest cost of the acquisition ($50,080) of the re-liquefier.

本提案寻求财政支持，用于购置设备，以将从低温设备中蒸发的氦再浓缩。该再浓缩器将在麦克马斯特低温高场实验室全年连续使用我于2002年在Brockhouse材料研究所成立了Mac LTHF实验室，该实验室由NSERC，CFI资助（加拿大创新基金会），OIT（安大略创新信托）和麦克马斯特，总预算超过100万美元。它拥有各种各样的低温设备，用于核磁共振，运输，交流磁化率，和高压测量。Mac LTHF实验室是迄今为止麦克马斯特最大的液氦用户。目前，当Mac LTHF实验室满负荷运行时，我们在Brockhouse研究所的氦净化器无法提供足够的液氦。我们最近收购了一台顶级的装载稀释制冷机和16特斯拉的超导磁体将加剧麦克马斯特的氦短缺，为了从对麦克LTHF实验室的大量财政投资中获得最大的科学红利，我们需要确保按时提供负担得起的和充足的液氦。拟议的收购不仅将解决氦短缺问题，同时也大大节省了Mac LTHF实验室的运营成本。在未来5年内，我们节省的运营成本总额将超过收购重组机的适度成本（50，080美元）。