FIELD: nuclear power engineering; thermal reactor cores.
SUBSTANCE: reactor core has process channels installed in solid moderator that accommodate fuel rods. The latter are installed in channels so that they form cavity holding hydrogen-containing moderator. Cross-sectional area of cavity measures between 1.0 and 5.0 cm. Water is used as hydrogen-containing moderator; cavity also holds water volume limiter made in the form of shell.
EFFECT: improved breeding properties due to enhanced mean neutron flux on fuel elements; reduced variation of energy and negative reactivity liberation at coolant loss.
4 cl, 5 dwg
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