BIOMEDICAL RESEARCH SUPPORT GRANT

我们建议购买自屏蔽磁梯度包， 更新我们的通用电气核磁共振CSI 2特斯拉成像仪/光谱仪系统。的 梯度升级包括高强度（7高斯/厘米）自屏蔽X，Y， 和Z梯度线圈，新的梯度放大器，以及更高的分辨率 现有核磁共振仪器的数字接口。 目前的无屏蔽磁梯度系统受到严重的涡流， 电流畸变，这在局部体积NMR和 光谱学和短回波时间成像。 此外，其低场- 强度（+/-2高斯/厘米）防止高分辨率，小视场 显像 梯度升级将解决这两个问题。 目前，研究人员必须投入相当大的一部分（往往超过一半）， 他们分配的核磁共振仪器时间进行数据分析，因为CSI是一个 单用户系统，并将其计算机硬件和软件用于 成像研究中的采集和通用计算机 实验室 成像研究实验室的这台仪器构成了 一个共享的设施，其业务根据以下标准进行审计和管理： 学校规定。

We propose the purchase of a self-shielded magnetic gradient package to update our General Electric NMR CSI 2-Tesla Imager/Spectrometer system. The gradient upgrade consists of high-strength (7 Gauss/cm) self-shielded X,Y, and Z gradient coils, new gradient amplifiers, and a higher resolution digital interface to the existing NMR instrument. The present unshielded magnetic-gradient system is subject to severe eddy- current distortions, which generate artifacts in both localized volume NMR spectroscopy and in short echo-time imaging. In addition, their low field- strength (+/-2 Gauss/cm) prevents high-resolution, small field-of-view imaging. The gradient upgrade will solve both problems. Currently, researchers must devote a substantial portion (often over half) of their allocated NMR instrument time to data analysis, since the CSI is a single user system, and users its computer hardware and software for both acquisition and general purpose computer in the Imaging Research Laboratory. This instrument in the Imaging Research Laboratory constitutes a shared facility whose operations is audited and managed according to University policy.