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一个便携式,固体冷却的0.5-T/560毫米点的护理MRI磁铁的概念设计
Dongkeun Park1, Juan Bascuñán1, Wooseung Lee2
1Francis Bitter Magnet Laboratory (FBML)/Plasma Science and Fusion Center (PSFC), Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA.
IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee
|August 28, 2023
概括
这项研究介绍了一种便携式,无液体磁共振成像 (MRI) 磁铁设计. 它在没有外部电源或制冷的情况下运行,为护理点应用提供超过10小时的现场稳定性.
科学领域:
- 医疗成像医学成像
- 应用超导的应用超导性
- 低温生化技术 低温生化技术
背景情况:
- 传统的磁共振成像 (MRI) 系统依靠液态来冷却超导磁铁,限制了它们的便携性并增加了运营成本.
- 护理点诊断需要紧,低维护的成像解决方案,可以在各种临床环境中部署.
- 现有的便携式MRI原型通常需要连续供电和制冷,阻碍了真正的现场操作.
研究的目的:
- 介绍一款新型便携式无液MRI磁铁的概念设计.
- 为了展示一个能够在使用过程中独立于外部电源和制冷运行的系统.
- 为了实现长时间稳定的磁场,适合于点护理应用.
主要方法:
- 该设计使用高温超导带 (全REBCO) 为磁线圈.
- 可拆卸的冷循环器将冷工作流体循环循环,使其易于合/解.
- 固体 (SN2) 被纳入冷室,以提供热质量,以延长场稳定性.
主要成果:
- 拟议的MRI磁铁以0.5特斯拉运行,光圈为560毫米.
- 该系统的设计在于在运行过程中不需要外部电源和制冷.
- 集成的固体使磁铁能够在与冷循环器脱后保持其磁场超过10小时.
结论:
- 该概念设计为真正便携式,无液体MRI系统提供了一条途径.
- 可拆卸的冷循环器和固体热质量是可移植性和操作灵活性的关键创新.
- 这项技术有可能显著扩大MRI在临床诊断的可用性.
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