Tokamak Fusion Test Reactor
E576876
The Tokamak Fusion Test Reactor was a major experimental fusion device in the United States that set world records for plasma temperature and fusion power in the late 20th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tokamak Fusion Test Reactor canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6225328 — 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: Tokamak Fusion Test Reactor Context triple: [Princeton Plasma Physics Laboratory, notableProject, Tokamak Fusion Test Reactor]
-
A.
Wendelstein 7-X
Wendelstein 7-X is a large experimental stellarator-type nuclear fusion device in Germany designed to study and optimize magnetically confined plasma for future fusion power plants.
-
B.
Experimental Advanced Superconducting Tokamak
The Experimental Advanced Superconducting Tokamak (EAST) is a Chinese magnetic confinement fusion research reactor designed to study and advance tokamak-based fusion energy technologies.
-
C.
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.
-
D.
X-10 graphite reactor
The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
-
E.
ZEEP reactor
The ZEEP reactor was a small Canadian research nuclear reactor that played a key role in early nuclear physics experiments and the development of Canada's nuclear energy 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: Tokamak Fusion Test Reactor Target entity description: The Tokamak Fusion Test Reactor was a major experimental fusion device in the United States that set world records for plasma temperature and fusion power in the late 20th century.
-
A.
Wendelstein 7-X
Wendelstein 7-X is a large experimental stellarator-type nuclear fusion device in Germany designed to study and optimize magnetically confined plasma for future fusion power plants.
-
B.
Experimental Advanced Superconducting Tokamak
The Experimental Advanced Superconducting Tokamak (EAST) is a Chinese magnetic confinement fusion research reactor designed to study and advance tokamak-based fusion energy technologies.
-
C.
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.
-
D.
X-10 graphite reactor
The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
-
E.
ZEEP reactor
The ZEEP reactor was a small Canadian research nuclear reactor that played a key role in early nuclear physics experiments and the development of Canada's nuclear energy program.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | tokamak ⓘ |
| achievedFusionPower | on the order of tens of megawatts ⓘ |
| acronym | TFTR NERFINISHED ⓘ |
| affiliation | Princeton University NERFINISHED ⓘ |
| commissioned | early 1980s ⓘ |
| confinementRegime | H-mode operation in some experiments ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| decommissioned | 1997 ⓘ |
| demolished | early 2000s ⓘ |
| field |
fusion energy research
ⓘ
plasma physics ⓘ |
| firstPlasma | 1982 ⓘ |
| fundedBy | United States Department of Energy NERFINISHED ⓘ |
| fusionFuel |
deuterium
ⓘ
tritium ⓘ |
| heatingMethod |
neutral beam injection
ⓘ
radio-frequency heating ⓘ |
| influenced |
ITER physics basis
NERFINISHED
ⓘ
International Thermonuclear Experimental Reactor design studies ⓘ |
| language | English ⓘ |
| legacy |
provided experimental database for next-generation fusion devices
ⓘ
trained generations of fusion scientists and engineers ⓘ |
| location |
Plainsboro Township, New Jersey
NERFINISHED
ⓘ
Princeton Plasma Physics Laboratory site NERFINISHED ⓘ |
| magneticConfinementType | tokamak with divertor ⓘ |
| majorUpgrade | deuterium-tritium capability in early 1990s ⓘ |
| notableFor |
contributing to understanding of reactor-relevant plasmas
ⓘ
demonstrating high-performance D-T plasmas ⓘ |
| operator |
PPPL
NERFINISHED
ⓘ
Princeton Plasma Physics Laboratory NERFINISHED ⓘ |
| partOf | U.S. magnetic fusion energy program NERFINISHED ⓘ |
| plasmaCurrent | megaampere-class plasma currents ⓘ |
| plasmaShape | elongated tokamak plasma cross-section ⓘ |
| purpose |
study high-temperature magnetically confined plasmas
ⓘ
test reactor concepts for future fusion power plants ⓘ |
| record |
world record fusion power output in early 1990s
ⓘ
world record plasma temperature in late 20th century ⓘ |
| recordType | deuterium-tritium fusion power ⓘ |
| researchFocus |
alpha particle physics
ⓘ
deuterium-tritium plasma behavior ⓘ plasma confinement ⓘ plasma stability ⓘ |
| safetyFeature |
radiation shielding for D-T experiments
ⓘ
remote handling for tritium operations ⓘ |
| startOfConstruction | late 1970s ⓘ |
| toroidalField | strong toroidal magnetic field for confinement ⓘ |
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: Tokamak Fusion Test Reactor Description of subject: The Tokamak Fusion Test Reactor was a major experimental fusion device in the United States that set world records for plasma temperature and fusion power in the late 20th century.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.