Main Ring (Fermilab)
E373832
Main Ring (Fermilab) was an earlier high-energy proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before the construction of the Tevatron.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Main Ring (Fermilab) canonical | 1 |
| Main Ring at Fermilab | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3616003 — 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 (Fermilab) Context triple: [Tevatron, predecessor, Main Ring (Fermilab)]
-
A.
Point 5 of the LHC ring
Point 5 of the LHC ring is the Large Hadron Collider interaction point that hosts the CMS detector and its associated experimental infrastructure.
-
B.
SLAC Large Detector
SLAC Large Detector was a particle physics detector at the Stanford Linear Accelerator Center used primarily for precision studies of Z boson decays in electron-positron collisions.
-
C.
Proton Synchrotron Booster
The Proton Synchrotron Booster is a circular particle accelerator at CERN that increases the energy of protons from the linear accelerator before injecting them into larger synchrotrons in the accelerator complex.
-
D.
Tevatron
Tevatron was a circular particle accelerator at Fermilab that for many years was the world’s highest-energy collider, crucial in advancing high-energy physics research.
-
E.
Arago ring
The Arago ring is a faint, narrow planetary ring encircling Neptune, named after the French astronomer François Arago.
- 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 (Fermilab) Target entity description: Main Ring (Fermilab) was an earlier high-energy proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before the construction of the Tevatron.
-
A.
Point 5 of the LHC ring
Point 5 of the LHC ring is the Large Hadron Collider interaction point that hosts the CMS detector and its associated experimental infrastructure.
-
B.
SLAC Large Detector
SLAC Large Detector was a particle physics detector at the Stanford Linear Accelerator Center used primarily for precision studies of Z boson decays in electron-positron collisions.
-
C.
Proton Synchrotron Booster
The Proton Synchrotron Booster is a circular particle accelerator at CERN that increases the energy of protons from the linear accelerator before injecting them into larger synchrotrons in the accelerator complex.
-
D.
Tevatron
Tevatron was a circular particle accelerator at Fermilab that for many years was the world’s highest-energy collider, crucial in advancing high-energy physics research.
-
E.
Arago ring
The Arago ring is a faint, narrow planetary ring encircling Neptune, named after the French astronomer François Arago.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
circular accelerator
ⓘ
particle accelerator ⓘ proton synchrotron ⓘ |
| acceleratorType | synchrotron ⓘ |
| beamDirection | counterclockwise (nominal operating direction) ⓘ |
| beamUse |
proton beams for hadron physics experiments
ⓘ
proton beams for neutrino experiments ⓘ |
| category |
Fermilab accelerators
ⓘ
high-energy physics infrastructure ⓘ proton synchrotrons ⓘ |
| circumference |
approximately 4 miles
ⓘ
approximately 6.3 kilometers ⓘ |
| commissioned | 1972 ⓘ |
| completionDate | early 1970s ⓘ |
| constructionStart | late 1960s ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedBy |
Fermi National Accelerator Laboratory
ⓘ
surface form:
Fermilab accelerator division
|
| endOfOperation | 1990s ⓘ |
| energy | about 400 GeV ⓘ |
| era |
1970s
ⓘ
1980s ⓘ |
| fundedBy |
U.S. Department of Energy
ⓘ
surface form:
United States Department of Energy
|
| geometry | circular ring ⓘ |
| infrastructure | tunnel in which Tevatron superconducting magnets were later installed ⓘ |
| injectionFrom |
Fermilab Booster
ⓘ
surface form:
Booster synchrotron
|
| locatedAt |
Fermi National Accelerator Laboratory
ⓘ
surface form:
Fermilab site near Batavia, Illinois
|
| locatedIn |
Batavia, Illinois
ⓘ
Fermi National Accelerator Laboratory ⓘ Illinois ⓘ United States of America ⓘ
surface form:
United States
|
| magnetType | conventional warm magnets ⓘ |
| notableFor |
being Fermilab’s first major high-energy synchrotron
ⓘ
reaching proton energies of several hundred GeV ⓘ |
| operator | Fermi National Accelerator Laboratory ⓘ |
| ownedBy | Fermi National Accelerator Laboratory ⓘ |
| partOf |
Fermilab accelerators
ⓘ
surface form:
Fermilab accelerator complex
|
| precededBy | Zero Gradient Synchrotron ⓘ |
| primaryBeamType | proton ⓘ |
| providedBeamTo |
Tevatron
ⓘ
surface form:
Tevatron (as injector)
fixed-target experimental areas at Fermilab ⓘ |
| role | primary accelerator at Fermilab before the Tevatron ⓘ |
| startOfOperation | early 1970s ⓘ |
| status | decommissioned ⓘ |
| successor | Tevatron ⓘ |
| tunnelSharedWith | Tevatron ⓘ |
| usedFor |
fixed-target experiments
ⓘ
high-energy physics 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 (Fermilab) Description of subject: Main Ring (Fermilab) was an earlier high-energy proton synchrotron at Fermilab that served as the laboratory’s primary accelerator before the construction of the Tevatron.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Main Ring at Fermilab