Collaborative Research: Development of a high-efficiency mass spectrometer: transitioning a high-efficiency ion source to a modern mass spectrometer

合作研究：高效质谱仪的开发：将高效离子源转变为现代质谱仪

• 批准号: 2016611
• 负责人: Richard Carlson
• 金额: $ 3.14万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2016611&HistoricalAwards=false
• 关键词: Collaborative; Research; Development; efficiency; mass

This EAR Instrumentation and Facilities Program award (a collaborative between Penn State and Carnegie Institution of Washington) will support the installation and testing of a newly developed, high-ionization-efficiency cavity ionization source on a modern multi-collector mass spectrometer, the Thermo-Fisher Triton. The ion source development was supported previously by the EAR/IF Program (EAR-1758571). If successful, the source augmented mass spectrometer promised significantly enhanced analytical precision for isotope ratio analysis with the potential for future transformative scientific advances in our understanding of the early evolution of Earth and planetary reservoirs (e.g., crust, mantle and core differentiation). The project involves an early career researcher and will result in construction and operation of a fundamentally new type of mass spectrometer, which if successful, has potential for commercialization and broader community use.The ultimate precision of mass spectrometry-based isotopic analyses is limited, in large part, by detector counting statistics. The cavity ion source may present a major step forward in the ability to produce large ion beams from geologic samples and may make it able to achieve isotope-ratio precisions currently unattainable with modern thermal ionization mass spectrometers (TIMS). Support will provide for installation of the developed ion source onto an existing Thermo-Fisher Triton TIMS and subsequent analytical testing. The investigators have preliminary demonstrations that the source produces: 1) large, stable ion beams for long periods of time, and 2) higher ionization efficiency than traditional flat-filament thermal ionization sources for select elements. The source-enhanced instrument has significant potential to advance research on fundamental questions in the geosciences, from radiometric dating to tracing first-order chemical processes that formed and modify various reservoirs on Earth and other planets, by providing large increases in the analytical precision achievable for targeted radiogenic isotope ratio determinations (e.g., Sm/Nd system for understanding the earliest history of Earth and the Solar System), that in allows for analysis of smaller rare samples than currently possible.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.

这项耳朵仪器和设施计划奖（宾夕法尼亚州立大学与华盛顿州卡内基机构之间的合作）将支持在现代多型收集器质谱仪Thermo-Fisher Triton上安装和测试新开发的，高离子化效率的空腔电离源。 离子源开发先前得到了EAR/IF程序（EAR-1758571）的支持。 如果成功的话，源质谱仪的增强承诺可以显着提高同位素比分析的分析精度，并在我们理解地球和行星储层的早期演变时（例如，地壳，地幔和核心差异化），可能会实现未来的变革性科学进步。 该项目涉及一名早期职业研究人员，并将导致从根本上进行新型的质谱仪的建设和运行，如果成功的话，它具有商业化的潜力和更广泛的社区使用。基于质谱的同位素分析的最终精度在很大程度上是有限的，在很大程度上是受检测器计数的统计数据的限制。 腔离子源可能会迈出从地质样品产生大离子束的能力上的重要一步，并且可以使现代热电离质谱仪（TIM）目前无法实现当前无法实现的同位素比率精确度。 支持将提供开发的离子源在现有的热效应器Triton Tims和随后的分析测试上的安装。 研究人员的初步证明说，来源会产生：1）长时间长时间的大型，稳定的离子束，以及2）比传统的扁平丝丝电离源更高的电离效率。源增强的仪器具有重要的潜力，可以推进地球科学中的基本问题的研究，从辐射历史到追踪一阶化学过程，这些过程形成和修改地球和其他行星上的各种储层，通过为靶向的放射线系统确定的靶向系统来实现，例如，确定索取的启用量（例如，SM/ND），可通过提供大量的分析精度，以实现分析精度。该奖项反映了NSF的法定任务，可以分析较小的稀有样本。该奖项被认为是值得通过基金会的知识分子优点和更广泛影响的评论标准来评估的。