In Situ Isotope Analyzer for Lunar and Planetary Science

We propose to leverage synergistic efforts to further the TRL and MRL of a new class of analytical instruments for both laboratory and field measurements. The development is based on a concept for trace-gas and isotope analysis that utilizes a priority hollow fiber as a low-volume, compact gas cell. An analyte is drawn into the fiber, which has a reflective inner coating that guides a tunable laser beam to a detector. There is near unity overlap between the laser beam and the gas sample, leading to a highly sensitive system with an ultra-compact size. In Phase II, a prototype water isotope analyzer was assembled and demonstrated for lunar applications. In this Phase II-E, we will leverage the prior and ongoing work on planetary sensors to help improve the design and performance of related sensors for terrestrial applications. The project will result in the production of prototypes for both immediate utilization by NASA, as well as for commercialization efforts.
Benefits: Isotopic data can provide information on the potential source of water in the solar system, as well as evidence for life beyond Earth. The development of the proposed in situ instrument is applicable to NASA’s planetary science goals summarized in the Planetary Decadal Survey. Such instruments and technologies will play a crucial role for NASA missions to various planetary bodies. This includes addressing two of NASA’s major themes: (1) understanding solar system beginnings and (2) searching for the requirements for life. Sensors resulting from this project will provide an extremely attractive alternative to isotope analyzers. The ability to obtain high-quality isotope data with a small SWaP sensor will be appealing for a range of environmental monitoring applications including but not limited to drone-borne sensing and unattended field monitoring.