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

该奖项的全部或部分资金来自《2021年美国救援计划法案》(公法117-2)。它将提供资金升级傅里叶变换红外光谱仪(DA3-FTIR)。该仪器复盖了广泛的光波长，并具有用于高温、低温和高压的附件，这使得该仪器可用于解决广泛的问题。得到支持的研究的广度的例子是医学方面的合作研究(骨骼生长)和正在进行的天文学研究(识别从旧恒星喷出的尘埃)。然而，该仪器的主要焦点一直是对地质、行星和材料科学重要的问题。升级后的文书将增加基础设施，并将有助于推动基本问题，同时提供教育和培训机会。该仪器已被华盛顿大学和密苏里大学的所有级别的学生以及其他教职员工使用。该实验室计划继续探索支配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其他地方。该实验室现有的傅立叶变换红外光谱仪(DA3-FTIR)自30年前得到美国国家科学基金会的资助以来，已被用于各种不同的研究项目。DA3-FTIR是一种高端研究仪器，拥有5对探测器和分束器，总共覆盖了从远红外到可见光。附件包括液氦低温恒温器、加热器和可在~10至700 K或压力至50 Gpa范围内获取光谱的钻石顶压室。对于非常小的样品，使用了两个红外显微镜。这台仪器不再由其制造商进行维护。问题在很大程度上是电子问题。由于其受欢迎和坚固的机械部件，一家小公司通过为该仪器提供升级、电子设备更换和支持来满足市场需求。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。正在进行和计划中的项目使用该仪器，对地球物理、火山学、岩石学和行星科学都很重要。获得与频率和温度相关的定量光谱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NSF的法定使命，并通过使用基金会的智力优势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.