Upgrade of an Infrared Spectrometer (with Electronics Replacement) for Quantitative Analysis, Focusing on H-species and Concentrations at Temperatures

该奖项全部或部分由《2021年美国救援计划法案》（公法117-2）资助。它将提供资金升级傅里叶变换红外光谱仪（DA3-FTIR）。该仪器覆盖了广泛的光波长范围，并具有用于高温和低温以及高压的附件，这使得该仪器可用于解决广泛的问题。得到广泛支持的研究包括医学领域的合作研究（骨骼生长）和正在进行的天文学研究（识别从老恒星喷射出的尘埃）。然而，该仪器的主要焦点一直放在地质、行星和材料科学的重要问题上。升级后的工具将增加基础设施，并将有助于推进基本问题，同时提供教育和培训机会。该仪器已被各级学生以及华盛顿大学和密苏里大学其他学院的学生使用。该实验室计划继续探索控制热与物质相互作用的基本原理，并将这些发现应用于地球和更远的地方。该实验室现有的傅立叶变换红外光谱仪（DA3-FTIR）自30年前由美国国家科学基金会资助以来，已被用于各种各样的研究项目。DA3-FTIR是一种高端的研究仪器，有5对探测器和分束器，总共覆盖了远红外到可见光。附件包括液氦低温恒温器，加热器和金刚石砧细胞，以获得光谱从~10到700 K或在压力到50 GPa。两台红外显微镜用于非常小的样品。这台仪器已不再由制造商维护。这些问题主要是电子的。由于其受欢迎程度和坚固的机械部件，一家小公司通过提供升级，电子更换和支持该仪器来满足市场需求。升级后的仪器将增加基础设施，并将有助于推进地质和行星科学的基本问题。正在进行的和计划中的项目使用该仪器，对地球物理学、火山学、岩石学和行星科学都很重要。获得定量光谱与频率和T将允许外推到无法达到的条件，并将提高对行星热状态和演化的理解。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2). It will provide funds to upgrade a Fourier Transform Infrared spectrometer (DA3-FTIR). The instrument covers a wide range of light wavelengths and has accessories for high and low temperatures as well as high pressure which makes the instrument useful in addressing an extensive range of problems. Examples of the breadth of supported research are collaborative studies in medicine (bone growth) and ongoing studies in astronomy (identifying dust ejected from old stars). However, the primary focus of the instrument has been on problems important to the geological, planetary and materials science. The upgraded instrument will add to the infrastructure and will help advance fundamental issues while providing opportunities for education and training. The instrument has been used by students at all levels plus students of other faculty at Washington U. and at U. Missouri. The laboratory plans to continue probing the fundamental principles that govern the interaction of heat with matter, and to apply these findings to the Earth and beyond.The existing Fourier Transform Infrared spectrometer (DA3-FTIR) in this laboratory has been used in diverse and numerous research projects since its funding by NSF three decades ago. The DA3-FTIR is a high-end research instrument, with 5 pairs of detectors and beam-splitters that altogether cover the far-IR to the visible. Accessories include a liquid helium cryostat, heaters, and diamond anvil cells to acquire spectra from ~10 to 700 K or at pressure to 50 GPa. Two IR-microscopes are used for very small samples. This instrument is no longer maintained by its manufacturer. The problems are largely electronic. Due to its popularity and robust mechanical components, a small company has filled the market need by offering an upgrade, electronics replacement, and support for this instrument. The upgraded instrument will add to the infrastructure and will help advance fundamental issues in the geological and planetary sciences. Ongoing and planned projects use this instrument and are important to geophysics, volcanology, petrology, and planetary science. Acquiring quantitative spectra vs frequency and T will permit extrapolating to unattainable conditions and will improve understanding of the thermal state and evolution of planets.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.