TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CORE GRID [2 records]

Record 1 2014-08-28

English

Subject field(s)
  • Nuclear Fission Reactors
DEF

A grid at the top of the core used for lateral support of fuel assemblies, neutron detectors, and start-up neutron sources in their upper end.

OBS

core grid: Not to be confused with "core support plate" (support grid placed in the lower part of the core.)

OBS

core grid: term and definition standardized by ISO in 1997.

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Élément ajouré situé au sommet du cœur utilisé comme support latéral dans leur partie supérieure des assemblages combustibles, des détecteurs de neutrons et des sources de neutrons de démarrage.

OBS

plaque supérieure du cœur : terme et définition normalisés par l'ISO en 1997.

Spanish

Save record 1

Record 2 2014-08-28

English

Subject field(s)
  • Nuclear Fission Reactors
CONT

Reactor Vessel and Internals … The core plate consists of a circular plate with round openings. The core plate provides lateral support and guidance for the control rod guide tubes, in-core flux monitor guide tubes, peripheral fuel supports, and startup neutron sources. The last two items are also supported vertically by the core plate. The entire assembly is bolted to a support ledge in the shroud.

OBS

core grid: Not to be confused with "upper core plate" (support grid placed at the top of the core.)

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Dans un réacteur à eau sous pression, plaque métallique ajourée, placée en partie basse du cœur pour supporter les assemblages combustibles [et] assurer leur maintien latéral [...]

CONT

Dans l’ABWR [réacteur à eau bouillante de type avancé,] la grille supérieure de cœur (top guide) repose en partie haute sur un redan. La plaque inférieure de cœur (core plate) repose sur un épaulement de l’enveloppe du cœur et maintient le cœur latéralement en partie basse.

Spanish

Save record 2

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