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Definition of High radiation area

High radiation area Definition from Science & Technology Dictionaries & Glossaries
NRC Nuclear Energy Glossary
Any area with dose rates greater than 100 millirems (1 millisievert) in one hour 30 centimeters from the source or from any surface through which the ionizing radiation penetrates. Areas at licensee facilities must be posted as "high radiation areas" and access into these areas is maintained under strict control.
A service to the public by The U.S. Nuclear Regulatory Commission (NRC).