National Spherical Torus Experiment
E576874
The National Spherical Torus Experiment is a major fusion energy research device that studies plasma confinement in a compact, spherical tokamak configuration.
All labels observed (3)
| Label | Occurrences |
|---|---|
| National Spherical Torus Experiment canonical | 1 |
| National Spherical Torus Experiment-Upgrade | 1 |
| National Spherical Torus Experiment-Upgrade device | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6225325 — 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: National Spherical Torus Experiment Context triple: [Princeton Plasma Physics Laboratory, notableProject, National Spherical Torus Experiment]
-
A.
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.
-
B.
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.
-
C.
ASDEX Upgrade
ASDEX Upgrade is a major German tokamak fusion experiment focused on studying magnetically confined plasmas and advancing the development of fusion energy.
-
D.
Low Energy Ion Ring
Low Energy Ion Ring is a CERN accelerator that prepares and injects low-energy heavy ion beams into the Large Hadron Collider for high-energy collision experiments.
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E.
National Ignition Facility
The National Ignition Facility is a large-scale laser-based inertial confinement fusion research installation designed to achieve nuclear fusion ignition and study high-energy-density physics.
- 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: National Spherical Torus Experiment Target entity description: The National Spherical Torus Experiment is a major fusion energy research device that studies plasma confinement in a compact, spherical tokamak configuration.
-
A.
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.
-
B.
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.
-
C.
ASDEX Upgrade
ASDEX Upgrade is a major German tokamak fusion experiment focused on studying magnetically confined plasmas and advancing the development of fusion energy.
-
D.
Low Energy Ion Ring
Low Energy Ion Ring is a CERN accelerator that prepares and injects low-energy heavy ion beams into the Large Hadron Collider for high-energy collision experiments.
-
E.
National Ignition Facility
The National Ignition Facility is a large-scale laser-based inertial confinement fusion research installation designed to achieve nuclear fusion ignition and study high-energy-density physics.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
fusion experiment
ⓘ
magnetic confinement fusion device ⓘ spherical tokamak ⓘ |
| affiliatedWith | United States Department of Energy NERFINISHED ⓘ |
| aimsTo |
advance understanding of spherical tokamak physics
ⓘ
support development of future fusion reactors ⓘ |
| commissioned | 1999 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedFor |
compact aspect ratio
ⓘ
high-beta operation ⓘ |
| fundedBy | United States Department of Energy NERFINISHED ⓘ |
| governedBy | Office of Science, U.S. Department of Energy NERFINISHED ⓘ |
| hasAbbreviation |
NSTX
NERFINISHED
ⓘ
NSTX-U NERFINISHED ⓘ |
| hasAspectRatio | low aspect ratio ⓘ |
| hasComponent |
divertor
ⓘ
neutral beam injectors ⓘ poloidal field coils ⓘ radio-frequency heating systems ⓘ toroidal field coils ⓘ vacuum vessel ⓘ |
| hasConfiguration | spherical tokamak ⓘ |
| hasDeviceType | tokamak ⓘ |
| hasMagneticConfinementGeometry | toroidal ⓘ |
| hasMajorUpgrade | National Spherical Torus Experiment-Upgrade NERFINISHED ⓘ |
| hasShape | spherical tokamak-like ⓘ |
| hasWebsite | https://nstx.pppl.gov/ ⓘ |
| locatedInCity | Plainsboro Township NERFINISHED ⓘ |
| locatedInCountry |
United States of America
ⓘ
surface form:
United States
|
| locatedInFacility | Princeton Plasma Physics Laboratory NERFINISHED ⓘ |
| locatedInState | New Jersey NERFINISHED ⓘ |
| operatedBy | Princeton Plasma Physics Laboratory NERFINISHED ⓘ |
| primaryResearchField |
fusion energy
ⓘ
plasma physics ⓘ |
| relatedTo |
Alcator C-Mod
NERFINISHED
ⓘ
DIII-D tokamak NERFINISHED ⓘ ITER NERFINISHED ⓘ Joint European Torus NERFINISHED ⓘ |
| researchFocus |
edge plasma physics
ⓘ
non-inductive current drive ⓘ plasma heating ⓘ plasma stability control ⓘ |
| startDate | 1999 ⓘ |
| studies |
magnetohydrodynamic stability
ⓘ
plasma confinement ⓘ transport in high-beta plasmas ⓘ |
| upgradeCompleted | 2015 ⓘ |
| usesConfinementMethod | magnetic confinement ⓘ |
| usesFuelType | deuterium plasma ⓘ |
| usesTechnology | superconducting magnets (in upgrade configuration) ⓘ |
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: National Spherical Torus Experiment Description of subject: The National Spherical Torus Experiment is a major fusion energy research device that studies plasma confinement in a compact, spherical tokamak configuration.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
National Spherical Torus Experiment-Upgrade
this entity surface form:
National Spherical Torus Experiment-Upgrade device