page_title: Radiation monitoring
hierarchical_section_title: Radiation monitoring
caption_attribution_description: English: PACIFIC OCEAN (April 1, 2011) Machinist's Mate 1st Class Margaret Huff, from Valparaiso, Ind., temporarily assigned to the aircraft carrier USS Ronald Reagan (CVN 76), checks a jet engine for radiation. Ronald Reagan is off the coast of Japan to provide disaster relief and humanitarian assistance to Japan as directed in support of Operation Tomodachi. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Michael Feddersen/Released)
context_page_description: Radiation monitoring involves the measurement of radiation dose or radionuclide contamination for reasons related to the assessment or control of exposure to radiation or radioactive substances, and the interpretation of the results.
context_section_description: Radiation monitoring involves the measurement of radiation dose or radionuclide contamination for reasons related to the assessment or control of exposure to radiation or radioactive substances, and the interpretation of the results.
caption: The U.S. Navy monitored radiation from the Fukushima I nuclear accidents
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