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NUCLEAR CONTROL ROD [11 records]
Record 1 - external organization data 2021-03-18
Record 1, English
Record 1, Subject field(s)
- Compartment – Nomenclature 4.0
- Museums and Heritage (General)
Record 1, Main entry term, English
- nuclear control rod
1, record 1, English, nuclear%20control%20rod
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
nuclear control rod : an item in the "Energy Production Tools and Equipment" class of the "Tools and Equipment for Science and Technology" category. 2, record 1, English, - nuclear%20control%20rod
Record 1, French
Record 1, Domaine(s)
- Tiroir – Nomenclature 4.0
- Muséologie et patrimoine (Généralités)
Record 1, Main entry term, French
- barre de commande nucléaire
1, record 1, French, barre%20de%20commande%20nucl%C3%A9aire
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
barre de commande nucléaire : objet de la classe «Outils et équipement de production d'énergie» de la catégorie «Outillage et équipement pour les sciences et la technologie». 2, record 1, French, - barre%20de%20commande%20nucl%C3%A9aire
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2017-04-19
Record 2, English
Record 2, Subject field(s)
- Nuclear Fission Reactors
Record 2, Main entry term, English
- pebble bed reactor core
1, record 2, English, pebble%20bed%20reactor%20core
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- pebble reactor core 1, record 2, English, pebble%20reactor%20core
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
In the monolithic type pebble bed reactor, the dimension of the reactor core diameter becomes large, and nuclear control for a large-sized reactor having a large output scale is insufficient in a cooled state using only control elements(control rod, boron sphere) inserted into the reflector region. Furthermore, a reactor core control rod, which is forcibly inserted directly into the reactor core, is required in addition to the control elements inserted into the reflector region by gravity drop only. Moreover, cases have been reported that fuel spheres are broken if the control rod is inserted forcibly into the core because the pebble reactor core is full of fuel spheres accumulated inside the reactor core, which causes a serious drawback. 1, record 2, English, - pebble%20bed%20reactor%20core
Record 2, French
Record 2, Domaine(s)
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- cœur à boulets
1, record 2, French, c%26oelig%3Bur%20%C3%A0%20boulets
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Dans un HTR [réacteur à haute température], le débit principal d'hélium (plus de 90 % du débit total) sert à refroidir le combustible et le modérateur, qui fournissent respectivement environ 90 % et 10 % de la puissance thermique du cœur. Les débits dérivés refroidissent les barres de contrôle et les structures latérales, dont le réflecteur. Dans un cœur à boulets, le réglage fin du débit par zone radiale de puissance n'est pas possible de par la conception. 1, record 2, French, - c%26oelig%3Bur%20%C3%A0%20boulets
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2017-04-13
Record 3, English
Record 3, Subject field(s)
- Nuclear Fission Reactors
- Nuclear Power Stations
Record 3, Main entry term, English
- in-core instrumentation system
1, record 3, English, in%2Dcore%20instrumentation%20system
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The in-core instrumentation system (IIS) provides the flux map of the reactor core and in-core thermocouple signals for postaccident monitoring. 2, record 3, English, - in%2Dcore%20instrumentation%20system
Record number: 3, Textual support number: 2 CONT
Cegelec will be responsible for programming and installing two of the most important control systems in a nuclear power plant-the control rod drive control system(RCS), which controls the reactor core, and the in-core instrumentation system(RIC), which measures reactor core neutron flux. 3, record 3, English, - in%2Dcore%20instrumentation%20system
Record 3, French
Record 3, Domaine(s)
- Réacteurs nucléaires de fission
- Centrales nucléaires
Record 3, Main entry term, French
- système RIC
1, record 3, French, syst%C3%A8me%20RIC
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- système d'instrumentation en cœur 2, record 3, French, syst%C3%A8me%20d%27instrumentation%20en%20c%26oelig%3Bur
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
[...] un système interne, mesurant le flux neutronique à l'intérieur du cœur, et un système externe placé à l'extérieur de la cuve coexistent. La terminologie habituellement retenue pour nommer les systèmes à partir de trigrammes utilise l'appellation RIC (réacteur instrumentation coeur) pour le premier et RPN (réacteur protection nucléaire) pour le second. Le système RIC mesure la distribution relative en 3D de la puissance à l'intérieur du cœur du réacteur avec une très bonne précision liée à un procédé de mesure interne au réacteur. C'est pourquoi on l'appellera par la suite système de référence. La constante de temps associée n'est pas une exigence forte; elle dépendra de l'architecture du système et de la technologie utilisée. 3, record 3, French, - syst%C3%A8me%20RIC
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2017-04-13
Record 4, English
Record 4, Subject field(s)
- Nuclear Plant Safety
- Radiation Protection
Record 4, Main entry term, English
- mechanical control rod
1, record 4, English, mechanical%20control%20rod
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Nuclear reactors can be controlled by a mechanical control rod system for a very subtle reason. In a chain reaction there are only fractions of seconds between one fission event and the next one(s), initiated by the former. However, since a small fraction of the neutrons needed to keep the chain going are generated with a delay in the range of ten seconds the necessary response time of the control system is in the range of 0. 1 seconds, thus making mechanical control possible in the first place. For plutonium the delayed neutron fraction is almost a factor of three smaller than for uranium, increasing demands on the control system. 2, record 4, English, - mechanical%20control%20rod
Record 4, French
Record 4, Domaine(s)
- Sûreté des centrales nucléaires
- Radioprotection
Record 4, Main entry term, French
- barre de commande mécanique
1, record 4, French, barre%20de%20commande%20m%C3%A9canique
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Cœur du réacteur. [...] Les dispositifs de réglage de la réactivité montés verticalement comprennent [...] les barres de commande mécaniques qui se trouvent normalement à l'extérieur du cœur. Elles sont insérées pour compléter la réactivité négative des barres de commande à eau ordinaire ou on les fait chuter pour effectuer une réduction rapide de la puissance. 1, record 4, French, - barre%20de%20commande%20m%C3%A9canique
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - external organization data 2013-09-26
Record 5, English
Record 5, Subject field(s)
- Nuclear Fission Reactors
- Nuclear Power Stations
- Compartment - Canadian Nuclear Safety Commission
Record 5, Main entry term, English
- control rod
1, record 5, English, control%20rod
correct, standardized
Record 5, Abbreviations, English
Record 5, Synonyms, English
- absorber rod 2, record 5, English, absorber%20rod
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
A rod plate or tube containing a material that readily captures neutrons(cadmium, boron, hafnium, gadolinium, or silver-indium) used to control the power of a nuclear reactor by absorbing neutrons. 3, record 5, English, - control%20rod
Record number: 5, Textual support number: 1 CONT
Control rods are set between fuel rods to regulate rate of nuclear reaction. Withdrawal of the rods permits free passage of neutrons from one fuel rod to another, increasing reaction rate. 4, record 5, English, - control%20rod
Record number: 5, Textual support number: 1 OBS
control rod: term standardized by ISO in 1997. 5, record 5, English, - control%20rod
Record 5, French
Record 5, Domaine(s)
- Réacteurs nucléaires de fission
- Centrales nucléaires
- Tiroir - Commission canadienne de sûreté nucléaire
Record 5, Main entry term, French
- barre de commande
1, record 5, French, barre%20de%20commande
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- barre de commande d'un réacteur 2, record 5, French, barre%20de%20commande%20d%27un%20r%C3%A9acteur
correct, feminine noun, standardized
- barre de réglage 3, record 5, French, barre%20de%20r%C3%A9glage
correct, feminine noun
- crayon absorbant 4, record 5, French, crayon%20absorbant
correct, masculine noun
- barre de contrôle 1, record 5, French, barre%20de%20contr%C3%B4le
see observation, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Barre ou ensemble de tiges solidaires mobiles, contenant une matière absorbant les neutrons et qui, suivant sa position dans le cœur d'un réacteur nucléaire, influe sur sa réactivité. 5, record 5, French, - barre%20de%20commande
Record number: 5, Textual support number: 1 OBS
barre de contrôle : terme dont l'emploi est déconseillé par certains auteurs. 6, record 5, French, - barre%20de%20commande
Record number: 5, Textual support number: 2 OBS
barre de commande d'un réacteur : terme normalisé par l'ISO en 1997. 6, record 5, French, - barre%20de%20commande
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Reactores nucleares de fisión
- Centrales nucleares
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 5, Main entry term, Spanish
- barra de control
1, record 5, Spanish, barra%20de%20control
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Barra constituida por una materia absorbente de neutrones y que, al penetrar más o menos profundamente en los elementos combustibles de un reactor nuclear, permite regular la reacción en cadena. 1, record 5, Spanish, - barra%20de%20control
Record number: 5, Textual support number: 1 CONT
Las barras de control suelen contener uno de los materiales siguientes: cadmio, berilio, boro, hafnio, gadolinio, etc. 1, record 5, Spanish, - barra%20de%20control
Record 6 - internal organization data 2010-12-09
Record 6, English
Record 6, Subject field(s)
- Nuclear Fission Reactors
Record 6, Main entry term, English
- control assembly
1, record 6, English, control%20assembly
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Shutdown system for a nuclear reactor … Seven fuel and control assemblies are also employed in the reactor core. Assemblies are substantially similar to fuel rods, but for the addition of a cadmium rod jacketed in corrosion-resistant metal, which addition serves as a control rod. The control rod of each assembly is located within [the] thimble and essentially replaces the assembly of fuel rods. Six of the seven fuel and control assemblies are located around the three concentric circles of [the] reactor core and serve as safety rods. 1, record 6, English, - control%20assembly
Record 6, French
Record 6, Domaine(s)
- Réacteurs nucléaires de fission
Record 6, Main entry term, French
- assemblage de contrôle
1, record 6, French, assemblage%20de%20contr%C3%B4le
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Assemblages de contrôle. Le réglage et l’arrêt du réacteur sont assurés par la manœuvre d’éléments absorbants; ces éléments sont constitués par des grappes d’aiguilles en carbure de bore enrichi, gainées d’acier austénitique, se déplaçant dans un tube analogue aux tubes hexagonaux des assemblages combustibles et permettant leur refroidissement par le sodium. 1, record 6, French, - assemblage%20de%20contr%C3%B4le
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2010-11-29
Record 7, English
Record 7, Subject field(s)
- Nuclear Plant Safety
- Nuclear Fission Reactors
Record 7, Main entry term, English
- anti-ejection device
1, record 7, English, anti%2Dejection%20device
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
Anti-ejection device for nuclear reactor control rod. The reactor comprises a tight enclosure integral with the nuclear reactor vessel, the control rod being integral with the command bar. 1, record 7, English, - anti%2Dejection%20device
Record 7, Key term(s)
- antiejection device
Record 7, French
Record 7, Domaine(s)
- Sûreté des centrales nucléaires
- Réacteurs nucléaires de fission
Record 7, Main entry term, French
- dispositif antiéjection
1, record 7, French, dispositif%20anti%C3%A9jection
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Des dispositions pour détecter rapidement une fuite ont été développées et des dispositifs antiéjection [de grappe de commande] ont été mis en place sur certaines tranches. 1, record 7, French, - dispositif%20anti%C3%A9jection
Record 7, Key term(s)
- dispositif anti-éjection
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2010-11-26
Record 8, English
Record 8, Subject field(s)
- Nuclear Fission Reactors
Record 8, Main entry term, English
- spacer grid
1, record 8, English, spacer%20grid
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
Spacer grids in a nuclear fuel assembly are used to support fuel rods for maintaining proper spacing, to provide proper flow mixing and to maintain core coolable geometry. 1, record 8, English, - spacer%20grid
Record number: 8, Textual support number: 1 OBS
The spacer grid is formed in the shape of a lattice with intersecting lattice members defining a plurality of cells, most of which respectively support the nuclear fuel rods. The remaining cells support nuclear control rod guide tubes and instrumentation thimbles. 1, record 8, English, - spacer%20grid
Record 8, French
Record 8, Domaine(s)
- Réacteurs nucléaires de fission
Record 8, Main entry term, French
- grille d’espacement
1, record 8, French, grille%20d%26rsquo%3Bespacement
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- grille de maintien 2, record 8, French, grille%20de%20maintien
correct, feminine noun
- grille d'entrée 1, record 8, French, grille%20d%27entr%C3%A9e
feminine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Chaque assemblage combustible, dont la longueur totale est de 10,015 m, comprend deux demi-éléments de 3,60 m, séparés par une entretoise de 20 mm. Ils sont montés sur un tube central en Zr- 2%Nb, de 15 mm de diamètre, servant à la manutention. Chacun d’eux est constitué de 18 crayons combustibles chargés de pastilles en UO2 enrichi initialement à 1,8 % en235U (ultérieurement, deux enrichissements ont été utilisés : 2 et 2,4 %). Une grille d’extrémité en Zr-2%Nb et 10 grilles d’espacement en acier inoxydable complètent l’architecture de l’assemblage combustible qui se présente sous forme cylindrique. 1, record 8, French, - grille%20d%26rsquo%3Bespacement
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2008-02-13
Record 9, English
Record 9, Subject field(s)
- Nuclear Fission Reactors
Record 9, Main entry term, English
- regulating rod
1, record 9, English, regulating%20rod
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- fine-control rod 2, record 9, English, fine%2Dcontrol%20rod
- fine control rod 3, record 9, English, fine%20control%20rod
standardized
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
A control rod intended to accomplish rapid, fine, and sometimes continuous adjustment of the reactivity of a nuclear reactor. 4, record 9, English, - regulating%20rod
Record number: 9, Textual support number: 1 OBS
It usually can move much more rapidly than a shim rod but makes a smaller change in reactivity. 4, record 9, English, - regulating%20rod
Record number: 9, Textual support number: 2 OBS
fine control rod: term standardized by ISO. 5, record 9, English, - regulating%20rod
Record 9, French
Record 9, Domaine(s)
- Réacteurs nucléaires de fission
Record 9, Main entry term, French
- barre de pilotage
1, record 9, French, barre%20de%20pilotage
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- barre de pilotage fin 2, record 9, French, barre%20de%20pilotage%20fin
feminine noun, standardized
- barre de réglage fin 3, record 9, French, barre%20de%20r%C3%A9glage%20fin
feminine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Barre de commande utilisée pour les ajustements faibles et précis de la réactivité d'un réacteur nucléaire, ainsi que, parfois, pour agir sur la répartition du flux neutronique dans le coeur de ce réacteur. 4, record 9, French, - barre%20de%20pilotage
Record number: 9, Textual support number: 1 OBS
barre de pilotage fin : terme normalisé par l'ISO. 5, record 9, French, - barre%20de%20pilotage
Record 9, Spanish
Record 9, Campo(s) temático(s)
- Reactores nucleares de fisión
Record 9, Main entry term, Spanish
- barra de regulación fina
1, record 9, Spanish, barra%20de%20regulaci%C3%B3n%20fina
feminine noun
Record 9, Abbreviations, Spanish
Record 9, Synonyms, Spanish
Record 9, Textual support, Spanish
Record 10 - external organization data 2002-02-25
Record 10, English
Record 10, Subject field(s)
- Mechanical Components
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 10, Main entry term, English
- rod drive mechanism
1, record 10, English, rod%20drive%20mechanism
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
Nuclear reactor control rods and equipment. Especially designed or prepared rods, support or suspension structures therefor, rod drive mechanisms or rod guide tubes to control the fission process in a nuclear reactor. 1, record 10, English, - rod%20drive%20mechanism
Record number: 10, Textual support number: 1 OBS
Regulation cited: Nuclear Non-Proliferation Import and Export Control Regulations. 2, record 10, English, - rod%20drive%20mechanism
Record 10, French
Record 10, Domaine(s)
- Composants mécaniques
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 10, Main entry term, French
- mécanisme d'entraînement de barre de commande
1, record 10, French, m%C3%A9canisme%20d%27entra%C3%AEnement%20de%20barre%20de%20commande
masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Barres de commande pour réacteurs et équipements connexes. Barres spécialement conçues ou préparées pour maîtriser le processus de fission dans un réacteur nucléaire, et structures de support ou de suspension, mécanismes d'entraînement ou tubes de guidage des barres de commande. 1, record 10, French, - m%C3%A9canisme%20d%27entra%C3%AEnement%20de%20barre%20de%20commande
Record number: 10, Textual support number: 1 OBS
Règlement cité : Règlement sur le contrôle de l'importation et de l'exportation aux fins de la non-prolifération nucléaire. 2, record 10, French, - m%C3%A9canisme%20d%27entra%C3%AEnement%20de%20barre%20de%20commande
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 1979-12-11
Record 11, English
Record 11, Subject field(s)
- Nuclear Power Stations
Record 11, Main entry term, English
- power control rod
1, record 11, English, power%20control%20rod
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 DEF
A control rod that produces only a small change in reactivity of a nuclear reactor, as required for controlling power level. 1, record 11, English, - power%20control%20rod
Record 11, French
Record 11, Domaine(s)
- Centrales nucléaires
Record 11, Main entry term, French
- barre de réglage
1, record 11, French, barre%20de%20r%C3%A9glage
correct
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 DEF
Élément de réglage en forme de barre. 1, record 11, French, - barre%20de%20r%C3%A9glage
Record 11, Spanish
Record 11, Textual support, Spanish
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