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In-core-nuclear-instrumentation-for-fast-breeder-reactors

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In-core nuclear instrumentation for fast breeder reactors

Details

Inventors: Konomura, Mamoru; Nakamura, Hisashi;
Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan (Tokyo, JP)
Primary Examiner: Behrend; Harvey E.
Assistant Examiner:
Attorney, Agent or Firm: Armstrong, Nikaido, Marmelstein, Kubovcik & Murray

In-core nuclear instrumentation for a fast breeder reactor includes a neutron flux measuring unit disposed in a control rod assembly, whereby it is possible to measure a change in in-core neutron flux reliably and highly accurately without requiring a major modification in core design.

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide in-core nuclear instrumentation for a fast breeder reactor in which, even if a heterogeneous core is employed in a demonstration or commercial reactor having a large core, a change in neutron flux within the core can be measured reliably and accurately without requiring a major modification in the design of the conventional core.
According to the present invention, the foregoing object is attained by arranging a neutron flux measuring unit in a control rod assembly in nuclear instrumentation for a fast breeder reactor.
By disposing the neutron flux measuring unit in the control rod assembly, the in-core nuclear instrumentation for fast breeder reactors in accordance with the invention makes it possible to measure a change in in-core neutron flux reliably and accurately without a significant modification in core design.
Other features and advantages of the present invention will be apparent from the following description taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof.

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