The Department of Defense, specifically the U.S. Army Combat Capabilities Development Command (DEVCOM), is soliciting white papers for the "Cryogenic Magnetometer Integration" initiative, focusing on the integration of cryogenically cooled magnetometers for military radio frequency applications. The objective is to assess and develop engineering designs for a prototype that can effectively shield sensors from electromagnetic interference and temperature fluctuations, enhancing the Army's capabilities in signals intelligence (SIGINT) through novel RF sensing technologies. Interested parties should note that this call for white papers is for market research purposes only, with no contract awards anticipated at this stage; however, the Army plans to award up to three contracts with a total funding ceiling of $3.15 million over a 24-month period. Responses are due by February 21, 2025, and technical questions must be submitted by February 7, 2025, with further details available to certified entities upon request. For inquiries, contact Kirstin Brown at kirstin.t.brown.civ@army.mil or Brian D. McGuire at brian.d.mcguire1.civ@army.mil.