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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 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.  6, record 1, English, - core%20support%20plate

Record number: 1, Textual support number: 1 OBS

core grid: Not to be confused with "upper core plate" (support grid placed at the top of the core.)  7, record 1, English, - core%20support%20plate

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 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 [...]  5, record 1, French, - plaque%2Dsupport%20de%20c%26oelig%3Bur

Record number: 1, Textual support number: 1 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.  6, record 1, French, - plaque%2Dsupport%20de%20c%26oelig%3Bur

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 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. The core plate also forms a partition within the shroud, which causes the recirculation flow to pass into the orificed fuel support and through the fuel assemblies.  2, record 2, English, - orificed%20fuel%20support

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Sur chaque tête de tube-guide repose une pièce supportant les pieds de quatre assemblages d'une même cellule. Ce support de combustible porte les 4 diaphragmes de stabilité (orificed fuel support) et laisse passer au centre une barre de commande cruciforme.  1, record 2, French, - diaphragme%20de%20stabilit%C3%A9

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The operation of a nuclear reactor is usually monitored by neutron flux measuring instrumentation introduced into the core. This instrumentation consists of detectors which can be moved into different sites in the fuel charge during operation of the reactor. The detectors are connected to flux measuring apparatus situated in a measuring room inside the shielding enclosure. They are generally moved inside a plurality of guide tubes which penetrate into the core and which are closed at the end.  1, record 3, English, - neutron%20flux%20measuring%20instrumentation

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

On notera qu'il y a une mise en commun très significative de l'instrumentation de mesure des flux neutroniques entre les fonctions «contrôle» et «protection».  1, record 3, French, - instrumentation%20de%20mesure%20des%20flux%20neutroniques

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

In PWR [pressurized water nuclear reactor], neutron detectors are inserted inside the fuel assemblies by moving into thimble guide tubes that penetrate into the vessel bottom head from the in-core instrumentation room.  1, record 4, English, - in%2Dcore%20instrumentation%20room

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Instrumentation interne des réacteurs. [...] L'ensemble du système électromécanique de commande permet l'introduction, par la partie inférieure de la cuve, et la conduite, au moyen d'un système de sélection, de six détecteurs mobiles simultanément dans six des soixante doigts de gant installés. [...] Les éléments correspondants sont installés en permanence dans une salle appelée salle d'instrumentation, située au niveau inférieur du bâtiment réacteur près du puits de cuve. À l'intérieur d'une même chaîne, UC [unité de commande] et sélecteurs sont reliés entre eux par des tubes de liaison dans lesquels circule la sonde mobile.  1, record 4, French, - salle%20d%27instrumentation

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Flux Thimble Guide Tubes. Flux thimbles are complements of the reactor in-core neutron monitoring or flux-mapping system. They are inserted into the reactor pressure vessel through the bottom... A thimble guide tube is divided into two parts. The upper part is located inside the fuel assembly, while the lower insertion is located between the reactor vessel bottom and the lower core plate.  1, record 5, English, - flux%20thimble%20guide%20tube

Record number: 5, Textual support number: 2 CONT

Flux thimbles are retracted during refueling and maintenance operations. Guide tubes provide housing and support to these thimbles along most of their lengths.  1, record 5, English, - flux%20thimble%20guide%20tube

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

Tubes doigt de gant. Ce sont des tubes réalisés en acier inoxydable étirés à froid, sans soudure, livrés à l'état écroui [...] Ils sont insérés à travers la buselure d'étanchéité dans les tubes de guidage; ils subissent donc un cintrage équivalent à celui des tubes de guidage avant de pénétrer dans la cuve (rayon de courbure égal à 2,50 m). Ils sont terminés à leur extrémité supérieure par une ogive soudée et à leur extrémité inférieure, par une pièce en forme de collerette servant de liaison avec la buselure d'étanchéité.  1, record 5, French, - tube%20doigt%20de%20gant

Record number: 5, Textual support number: 1 OBS

Le tube doigt de gant constitue avec la buselure d'étanchéité, la frontière du circuit primaire.  1, record 5, French, - tube%20doigt%20de%20gant

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

The guide thimbles are structural members which also provide channels for the neutron absorber rods, neutron sources or instrumentation devices. Each thimble consists of a Zircaloy tube. The tube diameter at the top section provides the annular area necessary to permit rapid control rod insertion during a reactor trip. The lower portion of the guide thimble is made with a smaller inner diameter to reduce diametrical clearances and produce a dashpot action near the end of the control rod travel during trip operation.  1, record 6, English, - dashpot%20action

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

Dans les conceptions REP (hors VVER) [...] La conception des tubes guides doit permettre une chute rapide des grappes de contrôles en cas d'arrêt d'urgence, mais doit aussi amortir cette chute en fin de parcours; à cette fin, le diamètre interne des tubes guides est rétréci dans la partie basse afin de provoquer un freinage hydraulique (effet de rétreint ou dashpot).  1, record 6, French, - effet%20de%20r%C3%A9treint

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A reactivity control device consisting of a removable solid absorber element, vertical guide tube and a drive mechanism. Adjusters are used to shape the neutron flux for optimum reactor power and fuel burnup...  1, record 7, English, - adjuster

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Barre de réglage utilisée pour la compensation d'un réacteur nucléaire.  2, record 7, French, - barre%20de%20compensation

Record 7,  Textual support,  Spanish