Main Ring
E373835
Main Ring was a former circular proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before being superseded by the Main Injector.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Main Ring canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3616035 — 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: Main Ring Context triple: [Main Injector, replaced, Main Ring]
-
A.
Ring (An Rinn)
Ring (An Rinn) is a coastal Irish-speaking village and Gaeltacht community in County Waterford, renowned for its strong traditional culture and language.
-
B.
Ringsaker
Ringsaker is a municipality in Innlandet county, Norway, known for its agricultural landscapes along Lake Mjøsa and its proximity to the town of Hamar.
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C.
Ring
Ring is a smart home security and video doorbell company known for its connected cameras and home monitoring services.
-
D.
Ringen
Ringen is a station on the Oslo Metro system that serves as a key endpoint for certain metro lines in Norway’s capital.
-
E.
Ring Parable
The Ring Parable is a central allegorical story in Lessing’s play "Nathan the Wise" that promotes religious tolerance by depicting three indistinguishable rings symbolizing Judaism, Christianity, and Islam.
- 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: Main Ring Target entity description: Main Ring was a former circular proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before being superseded by the Main Injector.
-
A.
Ring (An Rinn)
Ring (An Rinn) is a coastal Irish-speaking village and Gaeltacht community in County Waterford, renowned for its strong traditional culture and language.
-
B.
Ringsaker
Ringsaker is a municipality in Innlandet county, Norway, known for its agricultural landscapes along Lake Mjøsa and its proximity to the town of Hamar.
-
C.
Ring
Ring is a smart home security and video doorbell company known for its connected cameras and home monitoring services.
-
D.
Ringen
Ringen is a station on the Oslo Metro system that serves as a key endpoint for certain metro lines in Norway’s capital.
-
E.
Ring Parable
The Ring Parable is a central allegorical story in Lessing’s play "Nathan the Wise" that promotes religious tolerance by depicting three indistinguishable rings symbolizing Judaism, Christianity, and Islam.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
circular accelerator
ⓘ
particle accelerator ⓘ proton synchrotron ⓘ |
| acceleratorType | synchrotron ⓘ |
| circumference | about 6.3 km ⓘ |
| commissioned | early 1970s ⓘ |
| constructionStart | 1960s ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| energyRange | hundreds of GeV ⓘ |
| eraOfOperation |
1970s
ⓘ
1980s ⓘ 1990s ⓘ |
| infrastructureRelationship | tunnel later reused by the Main Injector ⓘ |
| laboratory |
Fermilab
ⓘ
linked to:
Fermi National Accelerator Laboratory
|
| locatedIn |
Batavia, Illinois
ⓘ
Fermilab ⓘ
linked to:
Fermi National Accelerator Laboratory
|
| maximumBeamEnergy | about 400 GeV ⓘ |
| notableFor | being Fermilab’s first major high-energy synchrotron ⓘ |
| operator | Fermi National Accelerator Laboratory ⓘ |
| particleTypeAccelerated | protons ⓘ |
| partOf |
Fermilab accelerator complex
ⓘ
linked to:
Fermilab accelerators
|
| primaryFunction | primary accelerator at Fermilab ⓘ |
| providedBeamsTo | Tevatron ⓘ |
| roleInTevatronComplex | injector to the Tevatron ⓘ |
| shape | circular ⓘ |
| status | decommissioned ⓘ |
| supersededBy | Main Injector ⓘ |
| usedFor |
fixed-target experiments
ⓘ
high-energy physics experiments ⓘ particle collision experiments ⓘ |
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: Main Ring Description of subject: Main Ring was a former circular proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before being superseded by the Main Injector.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.