Nuclear reactor robust gray control rod

Nuclear reactor robust gray control rod

A control rod having a lower tip absorber material which exhibits substantially lower irradiation induced swelling than a second absorber material which extends above the lower tip absorber material. The lower tip absorber material having a substantially lower reactivity worth than the second absorb...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LONG, JOSEPH, C, STUCKER, DAVID, L, HONE, MICHAEL, J, MISVEL, MICHAEL, C, POMIRLEAUNU, RADU, O
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Beschreibung
Zusammenfassung:A control rod having a lower tip absorber material which exhibits substantially lower irradiation induced swelling than a second absorber material which extends above the lower tip absorber material. The lower tip absorber material having a substantially lower reactivity worth than the second absorber material, extends from a lower end plug of the control rod to an elevation just above a dashpot in a thimble guide tube in a nuclear fuel assembly when the control rod is fully inserted within the thimble guide tube.