The opportunity covers refurbishment, qualification, and delivery of a scientific radiation measurement instrument supporting lunar surface exploration for the PROMISE mission. Work includes engineering analysis, environmental testing, systems integration, mission operations support, and scientific data analysis, plus development of specialized software, data processing techniques, and operational methodologies. The instrument PI and team must have extensive spaceflight radiation instrument experience, including original design, fabrication, qualification, operation, and long-term scientific data collection and analysis. The current instrument version is based on the team’s original design, flight hardware/software, and specialized analytical algorithms, and the team will provide technical support through refurbishment, flight qualification, integration, mission operations, and scientific investigations.