High-Field-Cryostat for Mössbauer Spectroscopy

用于穆斯堡尔光谱的高场低温恒温器

• 批准号: 521466656
• 金额: --
• 依托单位: Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2023
• 资助国家: 德国
• 起止时间: 2022-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/521466656?language=en
• 关键词: Field; Cryostat; ssbauer; Spectroscopy

The scientific focus of the applicant's group is the study of the function as well as the electronic and dynamic properties of iron centers in nature (iron proteins) and coordination chemistry (biomimetic iron complexes, spincrossover compounds and molecular magnets) by Mössbauer spectroscopy. For the identification of especially complex polynuclear iron centers in biological systems such as heme, non-heme, and iron-sulfur proteins, Mössbauer spectroscopy in high magnetic fields is one of the most suitable methods. Mössbauer spectroscopy in high magnetic fields also plays an important role in determining electronic and magnetic properties of iron centers. This special type of Mössbauer spectroscopy is operated in the applicant's research group at the TU Kaiserslautern thanks to a Mössbauer spectrometer with high-field cryostat approved in April 2005. After the procurement phase of a closed-cycle He cryostat equipped with a superconducting coil and a corresponding set-up phase, Mössbauer spectroscopic experiments could thus be performed since 2008. After 14 years of successful operation, the facility has exceeded its life time. The purpose of this application is to be able to continue Mössbauer spectroscopy in high magnetic fields at the TU Kaiserslautern in the future within the framework of a replacement procurement.

申请人小组的科学重点是通过穆斯堡尔光谱研究自然界中铁中心（铁蛋白质）和配位化学（仿生铁络合物，自旋交叉化合物和分子磁体）的功能以及电子和动力学性质。对于鉴定生物系统中特别复杂的多核铁中心，如血红素、非血红素和铁硫蛋白，高磁场中的穆斯堡尔谱是最合适的方法之一。高磁场中的穆斯堡尔谱在确定铁中心的电子和磁性方面也起着重要作用。这种特殊类型的穆斯堡尔谱仪是在申请人的研究小组在TU Kaiserenstern感谢穆斯堡尔谱仪与高场低温恒温器批准在2005年4月。在配备超导线圈的闭合循环He低温恒温器的采购阶段和相应的设置阶段之后，穆斯堡尔光谱实验自2008年以来就可以进行了。经过14年的成功运营，该设施已超过其使用寿命。该应用程序的目的是能够继续穆斯堡尔谱在高磁场中在TU Kaiserenstern在未来的框架内更换采购。