CANDU reactor technology
E773129
CANDU reactor technology is a Canadian-designed nuclear power reactor system that uses heavy water as both moderator and coolant and can operate on natural, unenriched uranium fuel.
All labels observed (3)
| Label | Occurrences |
|---|---|
| CANDU 6 | 1 |
| CANDU reactor | 1 |
| CANDU reactor technology canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9016385 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CANDU reactor technology Context triple: [Atomic Energy of Canada Limited, developed, CANDU reactor technology]
-
A.
Chalk River Laboratories
Chalk River Laboratories is a major Canadian nuclear research facility in Ontario known for pioneering work in nuclear reactor technology and isotope production.
-
B.
Pressurised water reactor
A pressurised water reactor is a type of nuclear fission reactor that uses high-pressure water as both coolant and neutron moderator to generate heat for producing electricity or naval propulsion.
-
C.
TRIGA research reactor
The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
-
D.
S2W nuclear reactor
The S2W nuclear reactor was an early U.S. Navy pressurized water reactor design that powered the world’s first operational nuclear-powered submarine, USS Nautilus.
-
E.
K15 pressurized water reactor
The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CANDU reactor technology Target entity description: CANDU reactor technology is a Canadian-designed nuclear power reactor system that uses heavy water as both moderator and coolant and can operate on natural, unenriched uranium fuel.
-
A.
Chalk River Laboratories
Chalk River Laboratories is a major Canadian nuclear research facility in Ontario known for pioneering work in nuclear reactor technology and isotope production.
-
B.
Pressurised water reactor
A pressurised water reactor is a type of nuclear fission reactor that uses high-pressure water as both coolant and neutron moderator to generate heat for producing electricity or naval propulsion.
-
C.
TRIGA research reactor
The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
-
D.
S2W nuclear reactor
The S2W nuclear reactor was an early U.S. Navy pressurized water reactor design that powered the world’s first operational nuclear-powered submarine, USS Nautilus.
-
E.
K15 pressurized water reactor
The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear reactor technology
ⓘ
pressurized heavy-water reactor design ⓘ |
| canUseFuel |
mixed oxide fuel
ⓘ
reprocessed uranium ⓘ slightly enriched uranium ⓘ spent fuel from light-water reactors ⓘ thorium-based fuel ⓘ |
| controlMechanism |
adjuster rods
ⓘ
mechanical control rods ⓘ |
| coolantPressure | high-pressure in pressure tubes ⓘ |
| coolingType | indirect cycle ⓘ |
| coreType | horizontal pressure tubes ⓘ |
| countryOfOrigin | Canada ⓘ |
| designGoal |
flexible fuel cycle options
ⓘ
high capacity factor ⓘ use of natural uranium fuel ⓘ |
| developer | Atomic Energy of Canada Limited NERFINISHED ⓘ |
| exportedToCountry |
Argentina
NERFINISHED
ⓘ
China NERFINISHED ⓘ India NERFINISHED ⓘ Other international customers via licensing and collaboration ⓘ Pakistan NERFINISHED ⓘ Romania NERFINISHED ⓘ South Korea NERFINISHED ⓘ |
| firstCommercialDeployment | 1960s ⓘ |
| fuelBundleType | short cylindrical fuel bundles ⓘ |
| fuelCladding | zirconium alloy ⓘ |
| fuelEnrichment | unenriched ⓘ |
| fuelForm | uranium dioxide pellets ⓘ |
| moderatorLocation | separate low-pressure calandria ⓘ |
| neutronEconomy | high ⓘ |
| neutronSpectrum | thermal ⓘ |
| notableVariant |
Advanced CANDU Reactor (ACR) concept
NERFINISHED
ⓘ
CANDU 6 NERFINISHED ⓘ CANDU 9 NERFINISHED ⓘ |
| pressureVessel | no large single pressure vessel ⓘ |
| primaryCircuitType | pressurized heavy-water loop ⓘ |
| refuelingCapability | on-power refueling ⓘ |
| regulatorInCanada | Canadian Nuclear Safety Commission NERFINISHED ⓘ |
| safetyFeature |
containment structure
ⓘ
independent shutdown systems ⓘ large negative void reactivity in moderator ⓘ separate low-temperature moderator ⓘ |
| secondaryCircuitType | light-water steam cycle ⓘ |
| shutdownSystem |
gravity-driven shutoff rods
ⓘ
liquid neutron poison injection ⓘ |
| typicalElectricalOutputRange | about 600–900 MWe per unit ⓘ |
| usesCoolant | heavy water ⓘ |
| usesFuel | natural uranium ⓘ |
| usesModerator | heavy water ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CANDU reactor technology Description of subject: CANDU reactor technology is a Canadian-designed nuclear power reactor system that uses heavy water as both moderator and coolant and can operate on natural, unenriched uranium fuel.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
CANDU reactor
this entity surface form:
CANDU 6