Halden research reactor (decommissioned)
E862641
The Halden research reactor was a Norwegian boiling water reactor used for nuclear research and fuel testing, located in Halden and permanently shut down and decommissioned in the late 2010s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Halden research reactor (decommissioned) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10427817 — 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: Halden research reactor (decommissioned) Context triple: [Halden, hasEnergyFacility, Halden research reactor (decommissioned)]
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A.
DIDO research reactor
The DIDO research reactor was a high-flux materials testing and research reactor in the UK, used primarily for nuclear materials irradiation and scientific experiments.
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B.
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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C.
LIDO research reactor
The LIDO research reactor was a small pool-type nuclear reactor used at the Atomic Energy Research Establishment in Harwell for research, training, and reactor physics experiments.
-
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.
-
E.
Arak heavy water reactor
The Arak heavy water reactor is an Iranian nuclear facility designed for research and isotope production that has been a central focus of international negotiations over Iran’s nuclear program.
- 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: Halden research reactor (decommissioned) Target entity description: The Halden research reactor was a Norwegian boiling water reactor used for nuclear research and fuel testing, located in Halden and permanently shut down and decommissioned in the late 2010s.
-
A.
DIDO research reactor
The DIDO research reactor was a high-flux materials testing and research reactor in the UK, used primarily for nuclear materials irradiation and scientific experiments.
-
B.
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.
-
C.
LIDO research reactor
The LIDO research reactor was a small pool-type nuclear reactor used at the Atomic Energy Research Establishment in Harwell for research, training, and reactor physics experiments.
-
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.
-
E.
Arak heavy water reactor
The Arak heavy water reactor is an Iranian nuclear facility designed for research and isotope production that has been a central focus of international negotiations over Iran’s nuclear program.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
boiling water reactor
ⓘ
research reactor ⓘ |
| builtDuring | Cold War era ⓘ |
| commissioningDate | 1959 ⓘ |
| constructionStart | 1955 ⓘ |
| coolant | light water ⓘ |
| country | Norway ⓘ |
| decommissioningReason |
ageing facility
ⓘ
economic and funding challenges ⓘ |
| decommissioningStart | late 2010s ⓘ |
| designedFor |
instrumented fuel experiments
ⓘ
in‑pile materials testing ⓘ |
| firstCriticality | 1958 ⓘ |
| fuelEnrichment | below 20% U‑235 ⓘ |
| fuelType | low-enriched uranium ⓘ |
| gridConnection | no regular electricity production ⓘ |
| gridConnectionCountry | Norway (limited experimental power only) ⓘ |
| internationalCollaboration | OECD Nuclear Energy Agency member countries NERFINISHED ⓘ |
| licensingAuthority | Norwegian Radiation and Nuclear Safety Authority NERFINISHED ⓘ |
| locatedIn |
Viken county
ⓘ
Østfold (former county) NERFINISHED ⓘ |
| location | Halden NERFINISHED ⓘ |
| moderator | light water ⓘ |
| notableFeature |
extensive in‑core instrumentation
ⓘ
flexible experimental rigs ⓘ |
| operator | Institute for Energy Technology NERFINISHED ⓘ |
| owner | Norwegian state NERFINISHED ⓘ |
| partOf | Norwegian nuclear research programme NERFINISHED ⓘ |
| permanentShutdownDecision | 2018 ⓘ |
| primaryUse |
fuel testing
ⓘ
materials testing ⓘ nuclear research ⓘ |
| reactorType | boiling water reactor ⓘ |
| regulatoryAuthority | Norwegian Radiation and Nuclear Safety Authority NERFINISHED ⓘ |
| researchFocus |
boiling water reactor technology
ⓘ
digital instrumentation and control ⓘ human‑machine interface in nuclear power plants ⓘ reactor safety ⓘ |
| researchProgram | OECD Halden Reactor Project NERFINISHED ⓘ |
| safetyResearch |
fuel performance under accident conditions
ⓘ
fuel performance under normal operation ⓘ human factors and control room design ⓘ materials behaviour in reactor environment ⓘ |
| safetySystem |
containment building
ⓘ
emergency core cooling systems ⓘ |
| shutdownDate | 2018 ⓘ |
| status |
decommissioned
ⓘ
permanently shut down ⓘ |
| thermalPower | 25 MWth ⓘ |
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: Halden research reactor (decommissioned) Description of subject: The Halden research reactor was a Norwegian boiling water reactor used for nuclear research and fuel testing, located in Halden and permanently shut down and decommissioned in the late 2010s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Halden