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Regional Basic Professional Training Course in Korea

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❙ 139 ❙<br />

3. <strong>Basic</strong> Pr<strong>in</strong>ciples Of Nuclear Safety<br />

They are <strong>in</strong>terdependent: the technical aspects <strong>in</strong> conjunction with adm<strong>in</strong>istrative and<br />

procedural measures provide protection from hazards due to ioniz<strong>in</strong>g radiation.<br />

Radiation Protection Objective: To ensure that <strong>in</strong> all operational states radiation<br />

exposure with<strong>in</strong> the <strong>in</strong>stallation or due to any planned release of radioactive material<br />

from the <strong>in</strong>stallation is kept below prescribed limits and as low as reasonably achievable,<br />

and to ensure mitigation of the radiological consequences of any accidents.<br />

Technical Safety Objective: To take all reasonably practicable measures to prevent<br />

accidents <strong>in</strong> nuclear <strong>in</strong>stallations and to mitigate the consequences of any accidents that<br />

do occur; to ensure with a high level of confidence that, for all possible accidents taken<br />

<strong>in</strong>to account <strong>in</strong> the design of the <strong>in</strong>stallation, <strong>in</strong>clud<strong>in</strong>g those of very low probability, any<br />

radiological consequences would be m<strong>in</strong>or and below prescribed limits; and to ensure<br />

that the likelihood of accidents with serious radiological consequences is extremely low.<br />

Safety Objectives require that nuclear <strong>in</strong>stallations are designed and operated so as to<br />

keep all sources of radiation exposure under strict technical and adm<strong>in</strong>istrative control.<br />

However, the Radiation Protection Objective does not preclude limited exposure of<br />

people or the release of legally authorized quantities of radioactive materials to the<br />

environment <strong>in</strong> operational states. Such exposures and releases, however, must be strictly<br />

controlled and must be <strong>in</strong> compliance with operational limits and radiation protection<br />

standards.<br />

To achieve the Safety Objectives, measures need to be taken to control radiation exposure<br />

<strong>in</strong> all operational states to levels as low as reasonably achievable and to m<strong>in</strong>imize the<br />

likelihood of an accident that might lead to the loss of normal control of the source of<br />

radiation. Nevertheless, accidents can happen. Measures are therefore required to ensure<br />

that any radiological consequence is mitigated. Such measures <strong>in</strong>clude on‐site accident<br />

management procedures and off‐site <strong>in</strong>tervention measures <strong>in</strong> order to mitigate radiation

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