The Department of Defense (DOD) is seeking proposals for the development of a portable Diamond Nitrogen-Vacancy (NV) Center-based Quantum Magnetometer for enhanced detection of Person-Borne Improvised Explosive Devices (PBIEDs). Quantum magnetometers utilizing Diamond NV technology offer significant advancements in sensitivity and precision for detecting minor fluctuations in magnetic fields. The magnetometers provide benefits such as exceptional sensitivity, robustness, durability, and non-invasive detection. However, challenges include manufacturing complexity, cost, false positives in metal-rich environments, and limitations in detection range and depth. The solicitation invites proposals for designing a portable Diamond NV-based Quantum Magnetometer that addresses these challenges and demonstrates a thorough understanding of operational contexts. The project will be conducted in three phases: Phase I involves foundational groundwork and design schematics, Phase II focuses on developing a working prototype, and Phase III involves refining the final deployable equipment and procedures. The development of a better magnetometer has the potential to provide significant benefits to numerous programs within the DoD. The deadline for proposal submission is March 31, 2025. For more information, visit the solicitation link.