SUPERCONDUCTING MAGNET FOR MICROCOIL NMR

描述（来自申请人摘要的逐字）：本申请的具体目的是为了说明本申请的目的。 第一阶段STTR项目，由American Magnetics，Inc.提出。合作 与麻省理工学院弗朗西斯比特磁铁实验室合作，是：1）实验性的 创新设计和操作特性的可行性论证 适用于NMR Nb 3Sn磁体/制冷机系统;以及2）完成 由AMI在第二阶段建造的原型的参考设计， 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）Nb 3Sn磁体/低温冷却器系统，台式和 “无噪声”，用于微线圈高分辨率NMR光谱学。创新 FBML开发的设计和操作功能包括：1）在 “冷体含有固体氮的磁铁， 冷体的热容量;和2）磁铁的温度变化，从8 当制冷机与冷体解耦并空转以使制冷机的温度降低时， 系统静止（“无噪声”），直到重新激活的制冷机 耦合到冷体，用于从10 K再冷却到8 K。nmr测量 在商业单位中，在每个约8小时的静止期内进行， 例如，对于2D NMR光谱来说是足够的。本定期 测量-再冷却顺序可以无限地继续。 拟定商业应用： American Magnetics，Inc.目标是在未来几年内， 新型台式核磁共振光谱仪器的不断发展领域 “无噪声”Nb 3 Sn磁体/制冷机系统，可在 350-400 MHz（8.2-9.0 T），用于微线圈高分辨率NMR光谱。

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.