The Department of Veterans Affairs (VA) is seeking qualified contractors to provide Quality Assurance (QA) software and equipment for radiotherapy beam dosimetry systems, specifically authorized distributors of Sun Nuclear equipment. The procurement includes three specific packages: the Sun Nuclear Dosimetry Package, Patient Quality Management Package, and Machine Quality Management Package, all of which are essential for ensuring quality management in radiotherapy. This Sources Sought Notice aims to identify potential contractors and is part of the VA's Veterans First Contracting Program, which prioritizes contracts for Service-Disabled Veteran-Owned Small Businesses (SDVOSBs) and Veteran-Owned Small Businesses (VOSBs). Interested parties must respond by September 16, 2024, and can contact Robert Bleichner at robert.bleichner@va.gov for further information.