Regional Basic Professional Training Course in Korea

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4. DESIGN OF NUCLEAR REACTORS
To reduce the concentration of airborne radioactive substances to levels compatible
with the need for access to the particular area;
To keep the level of airborne radioactive substances in the plant below prescribed
limits, the ALARA principle being applied in normal operation, anticipated
operational occurrences and design basis accidents; and
To ventilate rooms containing inert or noxious gases without impairing the ability
to control radioactive releases.
Control of releases of gaseous radioactive material to the environment
A ventilation system with an appropriate filtration system shall be provided to control the
release of airborne radioactive substances to the environment and to ensure that it
conforms to the ALARA principle and is within prescribed limits.
4.1.5.8. Fuel handling and storage systems
Handling and storage of non‐irradiated fuel
The handling and storage systems for non‐irradiated fuel shall be designed to do the
following:
To prevent criticality by a specified margin by physical means or processes,
preferably by the use of geometrically safe configurations, even under conditions
of optimum moderation;
To permit appropriate maintenance, periodic inspection and testing of components
important to safety; and
To minimize the probability of loss of or damage to the fuel.