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FUELLING ENGINEER [2 records]
Record 1 - external organization data 2005-08-24
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 1, Main entry term, English
- neutron flux flattening 1, record 1, English, neutron%20flux%20flattening
Record 1, Abbreviations, English
Record 1, Synonyms, English
- flux flattening 1, record 1, English, flux%20flattening
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
During normal, long-term operation, the exposure of the fuel to neutrons varies from place to place in the reactor. The fuelling engineer selects fuel replacement times and places to even out the availability of neutrons across the core. This is known as neutron flux flattening. The oldest fuel, which absorbs many neutrons uselessly, is left longer in areas of the core where the neutron flux tends to be high. Fresh fuel, which gives a higher rate of fission per neutron, is inserted into regions where the neutron flux is lower. 1, record 1, English, - neutron%20flux%20flattening
Record 1, French
Record 1, Domaine(s)
- Physique atomique
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 1, Main entry term, French
- aplanissement du flux neutronique
1, record 1, French, aplanissement%20du%20flux%20neutronique
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- aplanissement du flux 1, record 1, French, aplanissement%20du%20flux
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Combustible appauvri et aplanissement du flux neutronique. [...] En cours de fonctionnement normal, sur une longue période, l'exposition du combustible aux neutrons varie d'un endroit à l'autre du réacteur. Pour égaliser la disponibilité des neutrons dans le coeur, l'ingénieur responsable de son alimentation choisit le moment où l'on remplacera des grappes et dans quel emplacement les insérera-t-on. Ce travail s'appelle l'aplanissement du flux. Parce que le combustible plus vieux absorbe inutilement un grand nombre de neutrons, on le laisse plus longtemps dans les régions du coeur où le flux de neutron est spontanément plus élevé. On insère le combustible frais, dont le nombre de fissions par neutron est plus élevé, dans les régions où le flux de neutron est moins élevé. 1, record 1, French, - aplanissement%20du%20flux%20neutronique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - external organization data 2005-08-24
Record 2, English
Record 2, Subject field(s)
- Occupation Names (General)
- Combustion and Fuels (Fireplaces)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- fuelling engineer 1, record 2, English, fuelling%20engineer
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The fuelling engineer selects locations for depleted bundles. Depleted bundles are placed in the channel to keep the power output similar to before. 1, record 2, English, - fuelling%20engineer
Record 2, French
Record 2, Domaine(s)
- Désignations des emplois (Généralités)
- Combustion et combustibles (Foyers)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- ingénieur responsable de l'alimentation
1, record 2, French, ing%C3%A9nieur%20responsable%20de%20l%27alimentation
masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- ingénieur chargé de l'alimentation 1, record 2, French, ing%C3%A9nieur%20charg%C3%A9%20de%20l%27alimentation
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
L'ingénieur responsable de l'alimentation choisit où l'on devra insérer les grappes appauvries. On place l'uranium appauvri dans les canaux, afin de maintenir une production constante d'énergie. 1, record 2, French, - ing%C3%A9nieur%20responsable%20de%20l%27alimentation
Record 2, Spanish
Record 2, Textual support, Spanish
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