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CRITICALITY RISK [7 records]
Record 1 - internal organization data 2011-09-21
Record 1, English
Record 1, Subject field(s)
- Nuclear Physics
- Nuclear Plant Safety
Record 1, Main entry term, English
- criticality risk
1, record 1, English, criticality%20risk
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- nuclear criticality risk 1, record 1, English, %20nuclear%20criticality%20risk
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Criticality risk varies with the degree of enrichment in235U, the mass of enriched uranium, the presence of a moderator(such as water), and the geometry of the solid uranium mass. Sufficient masses of enriched uranium to create a criticality risk may be present in deposits internal to process equipment, or may accrue from waterborne transport of soluble uranium(either in the process equipment or during improper aqueous decontamination operations). 1, record 1, English, - criticality%20risk
Record 1, French
Record 1, Domaine(s)
- Physique nucléaire
- Sûreté des centrales nucléaires
Record 1, Main entry term, French
- risque de criticité
1, record 1, French, risque%20de%20criticit%C3%A9
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Pour toute manipulation de substance radioactive contenant des nucléides fissiles, risque d’excursion critique, avec ses conséquences associées : intense rayonnement neutronique, et dégagement de chaleur. 1, record 1, French, - risque%20de%20criticit%C3%A9
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-06-09
Record 2, English
Record 2, Subject field(s)
- Nuclear Plant Safety
- Nuclear Fission Reactors
Record 2, Main entry term, English
- accident with off-site risk
1, record 2, English, %20accident%20with%20off%2Dsite%20risk
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The International Nuclear Event Scale [INES]. Level 5. Accident with off-site risk. Criteria. External release of radioactive material(in quantities radiologically equivalent to the order of hundreds to thousands of terabecquerels of iodine-131). Such a release would be likely to result in partial implementation of countermeasures covered by emergency plans to lessen the likelihood of health effects. Severe damage to the nuclear facility. This may involve severe damage to a large fraction of the core of a power reactor, a major criticality accident or a major fire or explosion releasing large quantities of radioactivity within the installation. 1, record 2, English, - %20accident%20with%20off%2Dsite%20risk
Record 2, Key term(s)
- accident with offsite risk
Record 2, French
Record 2, Domaine(s)
- Sûreté des centrales nucléaires
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- accident entraînant un risque hors site
1, record 2, French, accident%20entra%C3%AEnant%20un%20risque%20hors%20site
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Structure fondamentale de l’échelle INES [échelle internationale des événements nucléaires]. [Niveau] 5. Accident entraînant un risque hors site. Conséquences à l’extérieur du site. Rejets limités susceptibles d’exiger l’application partielle des contremesures prévues. Conséquences à l’intérieur du site. Endommagement grave du coeur du réacteur ou des barrières radiologiques. 1, record 2, French, - accident%20entra%C3%AEnant%20un%20risque%20hors%20site
Record number: 2, Textual support number: 1 OBS
Les deux cas de niveau 5 sont ceux de Three Mile Island (1979, États-Unis) et Windscale (Grande-Bretagne 1957). 1, record 2, French, - accident%20entra%C3%AEnant%20un%20risque%20hors%20site
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - external organization data 2004-10-26
Record 3, English
Record 3, Subject field(s)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- reactor power-up 1, record 3, English, reactor%20power%2Dup
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
With respect to this risk, CNSC staff noted that the above-noted measures for preventing criticality and unintentional reactor power-up are acceptable and represent commonly used methods of assuring shutdown of power reactors during routine outages. 1, record 3, English, - reactor%20power%2Dup
Record 3, Key term(s)
- reactor power up
Record 3, French
Record 3, Domaine(s)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- surpuissance du réacteur
1, record 3, French, surpuissance%20du%20r%C3%A9acteur
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
En ce qui a trait à ce risque, le personnel de la CCSN a noté que les mesures susmentionnées pour empêcher les accidents de criticité et une surpuissance imprévue du réacteur sont acceptables et utilisées couramment pour arrêter les réacteurs au cours des arrêts réguliers. 1, record 3, French, - surpuissance%20du%20r%C3%A9acteur
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - external organization data 2004-10-26
Record 4, English
Record 4, Subject field(s)
- Nuclear Plant Safety
- Compartment - Canadian Nuclear Safety Commission
Record 4, Main entry term, English
- risk of a criticality accident 1, record 4, English, risk%20of%20a%20criticality%20accident
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Further on the potential for approval of fuel loading to prejudice or interfere with future licensing decisions, CNSC staff noted that, with the fuel in the reactor, the risk of a criticality accident must be considered. 1, record 4, English, - risk%20of%20a%20criticality%20accident
Record 4, French
Record 4, Domaine(s)
- Sûreté des centrales nucléaires
- Tiroir - Commission canadienne de sûreté nucléaire
Record 4, Main entry term, French
- risque d'accident de criticité
1, record 4, French, risque%20d%27accident%20de%20criticit%C3%A9
masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
En ce qui a trait à la possibilité que l'approbation du chargement du combustible dans le réacteur porte atteinte à la décision future, le personnel de la CCSN a noté qu'on doit tenir compte, lors du chargement, du risque d'accident de criticité. 1, record 4, French, - risque%20d%27accident%20de%20criticit%C3%A9
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - external organization data 2004-10-26
Record 5, English
Record 5, Subject field(s)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 5, Main entry term, English
- routine outage 1, record 5, English, routine%20outage
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
With respect to this risk, CNSC staff noted that the above-noted measures for preventing criticality and unintentional reactor power-up are acceptable and represent commonly used methods of assuring shutdown of power reactors during routine outages. 1, record 5, English, - routine%20outage
Record 5, French
Record 5, Domaine(s)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 5, Main entry term, French
- arrêt régulier
1, record 5, French, arr%C3%AAt%20r%C3%A9gulier
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
En ce qui a trait à ce risque, le personnel de la CCSN a noté que les mesures susmentionnées pour empêcher les accidents de criticité et une surpuissance imprévue du réacteur sont acceptables et utilisées couramment pour arrêter les réacteurs au cours des arrêts réguliers. 1, record 5, French, - arr%C3%AAt%20r%C3%A9gulier
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - external organization data 2004-10-26
Record 6, English
Record 6, Subject field(s)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 6, Main entry term, English
- restart application 1, record 6, English, restart%20application
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
The Commission is therefore of the view that the residual criticality risk associated with fuel loading would not prejudice or otherwise complicate the Commission's consideration of the restart application. 1, record 6, English, - restart%20application
Record 6, French
Record 6, Domaine(s)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 6, Main entry term, French
- demande de redémarrage
1, record 6, French, demande%20de%20red%C3%A9marrage
feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Elle estime donc que le risque d'accident de criticité associé au chargement du combustible ne porterait pas atteinte à son examen de la demande de redémarrage, ni ne le compliquerait. 1, record 6, French, - demande%20de%20red%C3%A9marrage
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - external organization data 2004-10-26
Record 7, English
Record 7, Subject field(s)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 7, Main entry term, English
- unintentional reactor power-up 1, record 7, English, unintentional%20reactor%20power%2Dup
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
With respect to this risk, CNSC staff noted that the above-noted measures for preventing criticality and unintentional reactor power-up are acceptable and represent commonly used methods of assuring shutdown of power reactors during routine outages. 1, record 7, English, - unintentional%20reactor%20power%2Dup
Record 7, French
Record 7, Domaine(s)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 7, Main entry term, French
- surpuissance imprévue du réacteur
1, record 7, French, surpuissance%20impr%C3%A9vue%20du%20r%C3%A9acteur
feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
En ce qui a trait à ce risque, le personnel de la CCSN a noté que les mesures susmentionnées pour empêcher les accidents de criticité et une surpuissance imprévue du réacteur sont acceptables et utilisées couramment pour arrêter les réacteurs au cours des arrêts réguliers. 1, record 7, French, - surpuissance%20impr%C3%A9vue%20du%20r%C3%A9acteur
Record 7, Spanish
Record 7, Textual support, Spanish
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