SUPERCONDUCTING MAGNET FOR MICROCOIL NMR

描述(逐字摘自申请者摘要)：本报告的具体目的 第一阶段STTR项目，由American Magnetics，Inc.合伙提出 与麻省理工学院弗朗西斯苦磁实验室合作，有：1)实验性 创新设计和运行特点的可行性论证 适用于核磁共振Nb_3Sn-磁体/制冷机系统；以及2)完成 AMI将在第二阶段建造的原型的参考设计，基于此 它的目标是在未来几年内制造和销售一种新的 这种350-400 MHz(8.2-9.0T)Nb3Sn型磁体/制冷机系统，台式和 “无噪音”，适用于微线圈高分辨率核磁共振波谱。创新的 FBML开发的设计和操作功能包括：1)在 “冷体含有固态氮的磁铁，可显著增强 冷体的热容量；以及2)磁铁温度的变化，从8 当制冷机与冷体分离并空转以使 系统处于静止状态(无噪音)，直到重新启动的制冷机 耦合到冷体以从10K到8K重新冷却核磁共振测量是 在以商业单位为单位的大约8小时的每个静止期间内执行， 例如，对于2D核磁共振谱来说就足够了。这个周期 测量-重新冷却序列可以无限地继续。 建议的商业应用： 美国磁铁公司的目标是在未来几年内在以下领域占据一席之地 发展中的新型台式核磁共振波谱仪器 “无噪音”Nb3锡磁体/制冷机系统，可在范围内的频率下运行 350-400 MHz(8.2-9.0 T)，用于微线圈高分辨率核磁共振波谱。

DESCRIPTION (Verbatim from the Applicant's Abstract): The specific aims of this Phase I STTR project, proposed by the American Magnetics, Inc. in partnership with the MIT Francis Bitter Magnet Laboratory, are: 1) experimental demonstration of feasibility of innovative design and operation features applicable to NMR Nb3Sn-magnet/cryocooler systems; and 2) completion of a reference design for a prototype to be built by AMI in Phase II, based on which it targets to manufacture and market, in the next few years, a new class of such 350-400MHz (8.2-9.0 T) Nb3Sn-magnet/cryocooler systems, bench-top and "noise-free," for micro coil high resolution NMR spectroscopy. The innovative design and operation features, developed at FBML, include: 1) presence in the "cold body containing the magnet of solid nitrogen to enhance significantly the cold body's heat capacity; and 2) variation in the magnet's temperature, from 8 K when the cryocooler is decoupled from the cold body and idled to make the system quiescent ("noise-free"), until when the re-activated cryocooler is coupled to the cold body for recooling from 10 K to 8 K. NMR measurement is performed during each quiescent period, in commercial units, of about 8 hours, sufficient, for example, for 2D NMR spectra. This periodic measurement-recooling sequence may be continued ad infinitum. PROPOSED COMMERCIAL APPLICATION: The American Magnetics, Inc. Targets to capture, in the next few years, a niche among the growing field of NMR spectroscopy instrumentation with a new class of bench-top "noise-free" Nb3 Sn-magnet/cryocooler systems, operatable at a frequency in the range 350-400 MHz (8.2-9.0 T), for microcoil high resolution NMR spectroscopy.