LOW AND HIGH TEMPERATURE SUPERCONDUCTING NMR MAGNET

低温和高温超导核磁共振磁铁

• 批准号: 6408002
• 负责人: Yukikazu Iwasa
• 金额: $ 0.1万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-30 至 2002-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6408002
• 关键词: bioengineering /biomedical engineering; biomedical equipment development; cold temperature; heat; magnetic field; nuclear magnetic resonance spectroscopy; superconductivity

The investigators propose a three stage plan for developing a high temperature superconducting insert coil for a low temperature superconductor magnet for nuclear magnetic resonance spectroscopy in order to boost its working field strength to 23.5 Tesla, a field strength evidently beyond the limits of current NMR magnet technology, as further described by their abstract: "The specific aim of this 18-month Phase 1 program of a 3-Phase project is the completion of a high-resolution LTS/HTS NMR magnet--possibly the first of its kind at the proposed completion date (September 2001)--by integration of an existing LTS background magnet available at FBML and an HTS insert to be designed and built at FBML. This 3-phase initiative proposes to achieve the ultimate goal of a 52-mm RT bore high-resolution 1 GHz NMR magnet by December 2004. We believe that this ultimate goal is attainable only through the successful completion of Phases 1 and 2. In each phase an LTS/HTS unit will be built based on essentially the same design principles and philosophy. Phase 1 targets 450 MHz and Phase 2 targets the range 700-800 MHz. "The significance of the Phase 1 program is in two areas: 1) successful operation of a high-resolution LTS/HTS NMR magnet; 2) successful demonstration of key design principles and philosophy--BSCCO-2223/Ag (alloy) tape and double-pancake coil configuration--adopted for Insert #1 that will also be followed, and, if needed, refined in Phases 2 and 3 upon completion of Phase 1. Note that both areas are critical ingredients to achieve the ultimate goal of 1 GHz. "Although rated only at 450 MHz and to be operated for a brief period to generate NMR signals, this high-resolution LTS/HTS system should validate our basic design principles and philosophy to achieve the 1 GHz goal by December 2004. Because the original 500 unit at FBML was once the first high-resolution NMR magnet to clear the 500 MHz mark, perhaps it would be justly apt if its resurrection--a high-resolution LTS/HTS NMR magnet--becomes the first of its kind."

调查人员提出了一个三阶段计划，以发展高 低温超导体的温度超导插入线圈 用于核磁共振光谱的磁铁，以增强其 工作场力量至23.5特斯拉，显然是一个野外力量 当前NMR磁铁技术的限制，如其 抽象的： “ 3相项目的这个18个月1阶段计划的具体目的是 高分辨率LTS/HTS NMR磁铁的完成 - 可能是第一个 在拟议的完成日期（2001年9月） - 通过集成 现有的LTS背景磁铁可在FBML上使用，HTS插入物为 在FBML设计和建造。这项三相倡议提议实现 52毫米RT孔高分辨率1 GHz NMR磁铁的最终目标 2004年。我们认为，只有通过 成功完成阶段1和2。在每个阶段，LTS/HTS单元将是 基于基本相同的设计原理和哲学构建。阶段1 目标450 MHz和2阶段的目标是700-800 MHz范围。 “第一阶段计划的重要性在两个领域：1）成功 高分辨率LTS/HTS NMR磁铁的操作； 2）成功演示 关键设计原理和哲学-BSCCO-2223/ag（合金）磁带和 双层蛋白线圈配置 - 适用于插入＃1，也将是 随后，如果需要，在第1阶段完成后，在第2和3阶段进行了完善。 请注意，这两个领域都是实现最终目标1的关键要素 GHz。 “尽管仅额定为450 MHz，并且要在短时间内操作 生成NMR信号，此高分辨率LTS/HTS系统应验证我们 基本的设计原则和理念，可以在12月之前实现1 GHz目标 2004。因为FBML的原始500单元曾经是第一个高分辨率 NMR磁铁可清除500 MHz标记，也许是合理的 复活 - 高分辨率LTS/HTS NMR磁铁 - becomes的第一个 种类。”