The NIH Clinical Center awarded a purchase order to Rad Source Technologies, Inc. on September 17, 2026, for annual preventive maintenance and repair services on a RadSource X-Ray 3400 Blood Irradiator, with a ceiling value of $20,000 and a firm-fixed-price structure. No small business set-aside was used. Performance occurs at the Clinical Center in Bethesda, Maryland. The blood irradiator is critical to the Department of Transfusion Medicine's transfusion services laboratory, where it irradiates blood components to prevent transfusion-associated graft-versus-host disease in patients and supports NIH research products. Rad Source Technologies is the sole source capable of providing maintenance and repair services for this proprietary equipment while meeting supplier qualification and regulatory requirements. The order is categorized under NAICS 811210 (Electronic and Precision Equipment Repair and Maintenance) and PSC J066. Performance extends through September 16, 2027.