OSTI.GOV is the primary search tool for DOE science, technology, and engineering research and development results and the organizational hub for information about the DOE Office of Scientific and Technical Information. OSTI.GOV makes discoverable over 70 years of research results from DOE and its predecessor agencies. Research results include journal articles/accepted manuscripts and related metadata; technical reports; scientific research datasets and collections; scientific software; patents; conference and workshop papers; books and theses; and multimedia.
The enclosed package represents radiation data collected with a helicopter over Washington, DC in 2013. The data were collected with an array of large thallium activated sodium iodide (NaI(Tl)) crystals and associated readout electronics to produce time and location referenced measurements. These results represent raw data that have been calibrated to physical units and validated. They do not include any further evaluation.