The Portsmouth Naval Shipyard is seeking a sole-source procurement of HPGE Detectors from Mirion Technologies (Canberra), as "Equal To" products will not be considered due to specific NAVSEA instructions. The requirement is tied to critical environmental analyses for delivering ships back to the Navy, and using a different vendor would cause significant cost and delays. The announcement closes on April 6, 2026. Quotations must be submitted via email and include detailed pricing, business, and compliance information. The government's payment terms are Net 30 days after acceptance of the material.