TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
THIMBLE TUBE [5 records]
Record 1 - internal organization data 2009-09-18
Record 1, English
Record 1, Subject field(s)
- Scientific Instruments
- Atomic Physics
Record 1, Main entry term, English
- movable detector
1, record 1, English, movable%20detector
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
Each measurement channel has, inside the nuclear reactor core, an instrumentation tube of a fuel assembly and a thimble placed inside the instrumentation tube, in which the fission probe moves around. Neutron flux measurements are carried out in a set of fuel assemblies distributed throughout the core cross section. 1, record 1, English, - movable%20detector
Record 1, French
Record 1, Domaine(s)
- Instruments scientifiques
- Physique atomique
Record 1, Main entry term, French
- détecteur mobile
1, record 1, French, d%C3%A9tecteur%20mobile
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les détecteurs mobiles sont du type chambres à fission. Ce type de capteur neutronique est une chambre d'ionisation classique et utilise comme matière sensible aux neutrons, l'uranium. Celui-ci, enrichi à 90 % en uranium 235, est déposé sous forme d'une couche d'oxyde. Chaque détecteur [...] est constitué d'une électrode centrale (anode), d'une deuxième électrode (cathode) qui détermine le volume de mesure, et d'une enveloppe de protection externe. Le gaz de remplissage est l'argon. 1, record 1, French, - d%C3%A9tecteur%20mobile
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2009-09-18
Record 2, English
Record 2, Subject field(s)
- Mechanical Components
- Security Devices
- Radiological Physics (Theory and Application)
Record 2, Main entry term, English
- flux thimble guide tube
1, record 2, English, flux%20thimble%20guide%20tube
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- thimble guide tube 2, record 2, English, thimble%20guide%20tube
correct
Record 2, Textual support, English
Record number: 2, 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 2, English, - flux%20thimble%20guide%20tube
Record number: 2, 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 2, English, - flux%20thimble%20guide%20tube
Record 2, French
Record 2, Domaine(s)
- Composants mécaniques
- Dispositifs de sécurité
- Physique radiologique et applications
Record 2, Main entry term, French
- tube doigt de gant
1, record 2, French, tube%20doigt%20de%20gant
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- tube de guidage de doigts de gant 2, record 2, French, tube%20de%20guidage%20de%20doigts%20de%20gant
correct, masculine noun
Record 2, Textual support, French
Record number: 2, 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 2, French, - tube%20doigt%20de%20gant
Record number: 2, Textual support number: 1 OBS
Le tube doigt de gant constitue avec la buselure d'étanchéité, la frontière du circuit primaire. 1, record 2, French, - tube%20doigt%20de%20gant
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-09-18
Record 3, English
Record 3, Subject field(s)
- Mechanical Components
- Security Devices
- Radiological Physics (Theory and Application)
Record 3, Main entry term, English
- instrumentation tube
1, record 3, English, instrumentation%20tube
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A nuclear fuel assembly has mechanical elements which constrain the flux thimble tube within the instrumentation tube to maintain physical contact with the interior surface of the instrumentation tube at a plurality of points staggered on a single-diametral plane and spaced substantially throughout the length of the instrumentation tube. 1, record 3, English, - instrumentation%20tube
Record 3, French
Record 3, Domaine(s)
- Composants mécaniques
- Dispositifs de sécurité
- Physique radiologique et applications
Record 3, Main entry term, French
- tube d'instrumentation
1, record 3, French, tube%20d%27instrumentation
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Il est nécessaire de calculer la section efficace de fission pour pouvoir remonter au flux reçu par le détecteur. Les modèles théoriques utilisés doivent être capables de modéliser explicitement le doigt de gant et le tube d'instrumentation afin de représenter les conditions exactes de la mesure. 1, record 3, French, - tube%20d%27instrumentation
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2009-09-16
Record 4, English
Record 4, Subject field(s)
- Nuclear Physics
- Nuclear Fission Reactors
Record 4, Main entry term, English
- dashpot action
1, record 4, English, dashpot%20action
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, 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 4, English, - dashpot%20action
Record 4, French
Record 4, Domaine(s)
- Physique nucléaire
- Réacteurs nucléaires de fission
Record 4, Main entry term, French
- effet de rétreint
1, record 4, French, effet%20de%20r%C3%A9treint
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, 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 4, French, - effet%20de%20r%C3%A9treint
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2009-09-16
Record 5, English
Record 5, Subject field(s)
- Combustion and Fuels (Fireplaces)
- Nuclear Fission Reactors
Record 5, Main entry term, English
- AGR fuel
1, record 5, English, AGR%20fuel
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- advanced gas-cooled reactor fuel 1, record 5, English, advanced%20gas%2Dcooled%20reactor%20fuel
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
AGR [Advanced Gas-cooled Reactor] fuel uses the same manufacturing process as for LWR [light water reactor] fuel. The fuel pellets(which are about the size of a thimble) are stacked inside a fuel tube. Once the tubes are sealed and pressurised, they are put together in the graphite 'sleeve’ to form the AGR fuel assembly. 1, record 5, English, - AGR%20fuel
Record 5, French
Record 5, Domaine(s)
- Combustion et combustibles (Foyers)
- Réacteurs nucléaires de fission
Record 5, Main entry term, French
- combustible AGR
1, record 5, French, combustible%20AGR
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
AGR : Advanced Gas-cooled Reactor. 2, record 5, French, - combustible%20AGR
Record 5, Spanish
Record 5, Textual support, Spanish
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