ESR MICROSCOPE MAIN MAGNET POWER SUPPLY UPGRADE

ESR显微镜主磁体电源升级

• 批准号: 8172187
• 负责人: CURT R DUNNAM
• 金额: $ 0.03万
• 依托单位: CORNELL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8172187
• 关键词: Arts; Computer Retrieval of Information on Scientific Projects Database; Computers; Frequencies; Funding; Grant; Hybrids; Institution; Investigation; Microscope; Noise; Output; Physiologic pulse; Power Sources; Qualifying; Regulation; Research; Research Personnel; Resources; Series; Source; System; United States National Institutes of Health; Vendor; base; density; design and construction; detector; expectation; experience; falls; radiofrequency

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We have acquired a state-of-the-art precision high-power switching power supply (15KW Lambda Genesys series) to replace the older Varian 5KW linear supply presently employed as the main magnet power source for the 16GHz ESR pulse microscope. The replacement switching power supply provides a low-noise, well-regulated output in a very high power density package that includes a number of I/O options for direct computer and LAN control. A thorough investigation of radiated and conducted radiofrequency noise for this power supply series has resulted in the vendor's supplying supplemental qualifying proof of its suitability for sensitive applications such as NMR and ESR. This supply will be incorporated into a host computer programmable regulation system consisting of the current Hall system (based on Lakeshore 475) and a proprietary field/frequency lock (FFL) r.f. detector/processor. In fall of 2008 this system will replace the existing FFL patch (Varian)/magnet power source. A second, similar 15KW power supply has been acquired for the 35GHz ESRM magnet, which will also utilize a hybrid Hall/FFL field regulation system. Consequently, our expectation is that the experience in design, construction and implementation of the first field-regulated magnet power source will be gainfully applied to the second system intended for the 35GHz ESR microscope.

该副本是利用众多研究子项目之一 由NIH/NCRR资助的中心赠款提供的资源。子弹和 调查员（PI）可能已经从其他NIH来源获得了主要资金， 因此可以在其他清晰的条目中代表。列出的机构是 对于中心，这不一定是调查员的机构。 我们已经获得了最先进的精度高功率开关电源（15kW lambda Genesys系列），以取代目前用作16GHz ESR脉冲显微镜的主要磁铁电源的较旧的Varian 5kW线性供应。更换开关电源提供了非常高的功率密度套件中低噪声，调节良好的输出，其中包括许多直接计算机和LAN控制的I/O选项。对该电源系列的辐射和进行辐射频噪声的彻底研究导致供应商提供补充合格的证明，以证明其适合NMR和ESR等敏感应用。该电源将被合并到由当前大厅系统（基于湖岸475）和专有场/频率锁（FFL）R.F.的主机计算机可编程系统中。检测器/处理器。在2008年秋季，该系统将替换现有的FFL补丁（Varian）/磁铁电源。 为35GHz ESRM磁铁采集了第二个相似的15kW电源，该磁铁还将利用混合厅/FFL场调节系统。因此，我们的期望是，第一个场调节的磁铁电源的设计，构建和实施经验将有资格应用于针对35GHz ESR显微镜的第二个系统。