Absorber-reflector unit

An absorber-reflector unit 100 for a nuclear reactor control drum (200, Fig. 9), comprises: a neutron-reflecting material 20, e.g. nuclear-grade graphite, beryllium oxide or aluminium oxide; a neutron-absorbing material 30, e.g. boron carbide or borated stainless steel; a shaft 40 at least partially...

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Bibliographic Details
Main Authors Dane Buller, Felix J G Larner, Martin W Barker, John D Boughton, Daniel J Thatcher, Lewis P Hatton, Philip J English, Edmund M Priestnall
Format Patent
LanguageEnglish
Published 09.10.2024
Subjects
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Summary:An absorber-reflector unit 100 for a nuclear reactor control drum (200, Fig. 9), comprises: a neutron-reflecting material 20, e.g. nuclear-grade graphite, beryllium oxide or aluminium oxide; a neutron-absorbing material 30, e.g. boron carbide or borated stainless steel; a shaft 40 at least partially housed within the neutron-reflecting material such that when the shaft is rotated the neutron-reflecting material rotates; and at least one positioning member 60 at least partially housed within the neutron-absorbing material and oriented parallel to the shaft. The at least one shaft and at least one positioning member are attached to a base plate 10, said base plate being connectable to a rotation means, such as a gear or actuator. The shaft and positioning member may also be shaped to interlock with the respective holes in the reflecting and absorbing materials into which they extend.
Bibliography:Application Number: GB20240008547