CRYO-FREE 4.7 ACTIVE-SHEILD ICR SPECTROMETER MAGNET

本项目旨在开发具有主动屏蔽的4.7特斯拉无低温高分辨率傅立叶变换质谱仪磁体原型。采用闭式循环制冷，大大降低了系统的运行成本和运行复杂度。所提出的磁体系统将是理想的生物实验室进行频谱分析，在那里和当获得液冷剂是有限的，或在实验室空间有限。第二阶段的主要研究目标是建立、测试和评估一个全尺寸4.7特斯拉FTMS无低温磁体系统。为了实现这一目标，cryomigtics公司提出了一种技术方法，即在LHe中测试NbTi线圈在持久模式下的稳定性，以确保每个线圈的性能，然后将高tc电流引线和淬火保护系统组装线圈，并借助制冷机在无低温环境下测试整个磁体。在第二阶段研究结束时，将开发出全尺寸4.7 T有源屏蔽FTMS原型磁铁并进行全面测试。这个原型磁铁将成为第三阶段项目的卖点——无低温4.7 T主动屏蔽FTMS磁铁系统的商业化。在第一及第二阶段发展的新技术，可减低FTMS系统的运作成本及增加灵活性，对商业产生重大影响。该项目二期的成功完成将使高迁移率、高分辨率的ICR-FTMS磁体进入市场。建议的商业应用：在ICR-FTMS生物研究实验室中，消除对液冷剂的需求将减少系统停机时间，提高操作人员的安全性，并降低操作成本。结合通过使用主动屏蔽消除杂散磁场，拟议的系统将重新定义已经快速增长的全球FTMS系统市场。

This project is aimed at developing a prototype 4.7 Tesla cryogen-free high resolution Fourier Transform Mass Spectrometer magnet with active- shielding. By using close-cycle refrigeration, system operating cost and the operating complexity will be reduced significantly. The proposed magnet system will be ideal for bio-laboratories performing spectrum analysis where and when access to liquid cryogen is limited, or where the laboratory space is limited. The primary Phase II research objective is to build, test and evaluate a full scale 4.7 Tesla FTMS cryogen-free magnet system. To achieve the objective, Cryomagnetics, Inc. proposes a technical approach that consists of testing the stability of NbTi coils in LHe under persistent mode operation to insure each coil's performance, and then assembling coils with high-Tc current leads and quench protection system and testing the complete magnet in cryogen-free environment with the aid of cryocooler. At the end of Phase II research, a full scale 4.7 T, active-shielded FTMS prototype magnet will have been developed and fully tested. This prototype magnet will be the selling point for Phase III program--the commercialization of cryogen-free 4.7 T active-shielded FTMS magnet system. The new technologies developed in Phase I and II will generate great commercial impact by reducing FTMS system operating cost and increasing flexibility. The successful completion of Phase II of this project will make high mobility, high resolution ICR-FTMS magnets available in the market. PROPOSED COMMERCIAL APPLICATIONS: The elimination of the need for liquid cryogens will reduce system down time, improve operator safety, and reduce operating costs in ICR-FTMS bio- research laboratories. Combined with the elimination of stray magnetic fields through the use of active shielding, the proposed system will redefine the already rapidly growing worldwide market for FTMS systems.