BEPO research reactor
E665459
The BEPO research reactor was one of the United Kingdom’s early experimental nuclear reactors, used at Harwell for materials testing, reactor physics research, and the development of nuclear technology.
All labels observed (2)
| Label | Occurrences |
|---|---|
| BEPO research reactor canonical | 1 |
| PLUTO research reactor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7433148 — 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: BEPO research reactor Context triple: [Atomic Energy Research Establishment Harwell, hasReactor, BEPO research reactor]
-
A.
GLEEP research reactor
The GLEEP research reactor was the United Kingdom’s first nuclear reactor, a low-power graphite-moderated facility used primarily for research and materials testing at Harwell.
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B.
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.
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C.
Brookhaven Graphite Research Reactor
The Brookhaven Graphite Research Reactor was one of the earliest large research reactors in the United States, used primarily for neutron physics experiments and materials research at Brookhaven National Laboratory.
-
D.
HANARO research reactor
The HANARO research reactor is a multi-purpose nuclear research facility in South Korea used for neutron science, materials testing, radioisotope production, and various nuclear technology applications.
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E.
Experimental Breeder Reactor II
Experimental Breeder Reactor II was a sodium-cooled fast breeder nuclear reactor and research facility in Idaho that played a key role in demonstrating advanced reactor safety and fuel cycle technologies.
- 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: BEPO research reactor Target entity description: The BEPO research reactor was one of the United Kingdom’s early experimental nuclear reactors, used at Harwell for materials testing, reactor physics research, and the development of nuclear technology.
-
A.
GLEEP research reactor
The GLEEP research reactor was the United Kingdom’s first nuclear reactor, a low-power graphite-moderated facility used primarily for research and materials testing at Harwell.
-
B.
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.
-
C.
Brookhaven Graphite Research Reactor
The Brookhaven Graphite Research Reactor was one of the earliest large research reactors in the United States, used primarily for neutron physics experiments and materials research at Brookhaven National Laboratory.
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D.
HANARO research reactor
The HANARO research reactor is a multi-purpose nuclear research facility in South Korea used for neutron science, materials testing, radioisotope production, and various nuclear technology applications.
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E.
Experimental Breeder Reactor II
Experimental Breeder Reactor II was a sodium-cooled fast breeder nuclear reactor and research facility in Idaho that played a key role in demonstrating advanced reactor safety and fuel cycle technologies.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
graphite-moderated reactor
ⓘ
nuclear reactor ⓘ research reactor ⓘ |
| coolant | air ⓘ |
| country | United Kingdom ⓘ |
| field |
materials science
ⓘ
nuclear engineering ⓘ reactor physics ⓘ |
| fuel | natural uranium ⓘ |
| hasResearchType | experimental reactor ⓘ |
| heritage | historical reactor in UK nuclear development ⓘ |
| locatedInFacility |
Harwell research site
ⓘ
linked to:
Harwell Science and Innovation Campus
|
| location |
Atomic Energy Research Establishment, Harwell
ⓘ
linked to:
Atomic Energy Research Establishment Harwell
Harwell, Oxfordshire ⓘ
linked to:
Harwell Science and Innovation Campus
|
| moderator | graphite ⓘ |
| operator | United Kingdom Atomic Energy Authority ⓘ |
| partOf |
United Kingdom early nuclear programme
ⓘ
linked to:
Nuclear history of the United Kingdom
|
| purpose |
development of nuclear technology
ⓘ
materials testing ⓘ reactor physics research ⓘ |
| safetyFeature | graphite moderator design ⓘ |
| significance | one of the United Kingdom’s early experimental nuclear reactors ⓘ |
| status |
decommissioned
ⓘ
shut down ⓘ |
| usedBy | British nuclear research community ⓘ |
| usedFor |
development of power reactor designs
ⓘ
neutron irradiation experiments ⓘ testing of reactor materials ⓘ training of nuclear scientists and engineers ⓘ |
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: BEPO research reactor Description of subject: The BEPO research reactor was one of the United Kingdom’s early experimental nuclear reactors, used at Harwell for materials testing, reactor physics research, and the development of nuclear technology.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: BEPO research reactor