Definition: | physical obstruction that prevents or delays the movement of people, radionuclides or some other phenomenon (e.g., fire) or provides shielding against radiation
Note 1 to entry: In a nuclear reactor there are three barriers: clad of a fuel rod, vessel and containment. Note 2 to entry: This entry was numbered 393-17-57 in IEC 60050-393:2003.
|