Main Injector
E76601
The Main Injector is a high-energy particle accelerator at Fermilab used to accelerate and deliver proton and antiproton beams for particle physics experiments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Main Injector canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T613884 — 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 Injector Context triple: [Fermi National Accelerator Laboratory, hasFacility, Main Injector]
-
A.
B Reactor
B Reactor is the world’s first full-scale plutonium production reactor, built during the Manhattan Project at the Hanford Site in Washington State.
-
B.
F Reactor
F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
-
C.
The Factory
The Factory was Andy Warhol’s legendary New York City studio and avant-garde hub, famous for its experimental art, film, and celebrity-filled gatherings in the 1960s and 1970s.
-
D.
H Reactor
H Reactor was one of the plutonium-producing nuclear reactors at the Hanford Site in Washington, built during the Cold War as part of the U.S. nuclear weapons program.
-
E.
Chief Constructor
Chief Constructor was the secret title used in the Soviet Union for Sergei Korolev, the leading rocket engineer and spacecraft designer behind the early Soviet space 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: Main Injector Target entity description: The Main Injector is a high-energy particle accelerator at Fermilab used to accelerate and deliver proton and antiproton beams for particle physics experiments.
-
A.
B Reactor
B Reactor is the world’s first full-scale plutonium production reactor, built during the Manhattan Project at the Hanford Site in Washington State.
-
B.
F Reactor
F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
-
C.
The Factory
The Factory was Andy Warhol’s legendary New York City studio and avant-garde hub, famous for its experimental art, film, and celebrity-filled gatherings in the 1960s and 1970s.
-
D.
H Reactor
H Reactor was one of the plutonium-producing nuclear reactors at the Hanford Site in Washington, built during the Cold War as part of the U.S. nuclear weapons program.
-
E.
Chief Constructor
Chief Constructor was the secret title used in the Soviet Union for Sergei Korolev, the leading rocket engineer and spacecraft designer behind the early Soviet space program.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
particle accelerator
ⓘ
synchrotron ⓘ |
| abbreviation | MI ⓘ |
| acceleratorType | proton synchrotron ⓘ |
| beamExtractionType |
fast extraction
ⓘ
slow extraction ⓘ |
| circumference | approximately 3.3 kilometers ⓘ |
| commissionedIn | 1999 ⓘ |
| completedIn | 1998 ⓘ |
| constructionStart | early 1990s ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedFor |
antiproton accumulation and delivery
ⓘ
high-intensity proton beams ⓘ |
| energyRange | 8 GeV to 150 GeV protons ⓘ |
| hasBeamType |
antiproton beam
ⓘ
proton beam ⓘ |
| hasComponent |
beam collimation system
ⓘ
extraction systems ⓘ radio-frequency cavities ⓘ superconducting magnets ⓘ |
| hostInstitution | Fermi National Accelerator Laboratory ⓘ |
| injectedFrom | Fermilab Booster ⓘ |
| injectionEnergy | 8 GeV ⓘ |
| locatedIn |
Batavia, Illinois
ⓘ
United States of America ⓘ
surface form:
United States
|
| location |
Fermi National Accelerator Laboratory
ⓘ
surface form:
Fermilab
|
| maximumProtonEnergy | 150 GeV ⓘ |
| operator | Fermi National Accelerator Laboratory ⓘ |
| partOf |
Fermi National Accelerator Laboratory
ⓘ
surface form:
Fermilab accelerator complex
|
| primaryFunction |
accelerate antiprotons
ⓘ
accelerate protons ⓘ |
| replaced | Main Ring ⓘ |
| status | operational ⓘ |
| suppliedBeamsTo |
Booster Neutrino Beam
ⓘ
NuMI beamline ⓘ
surface form:
MINERvA experiment
MINOS experiment ⓘ NOvA experiment ⓘ NuMI beamline ⓘ Tevatron ⓘ |
| upgrade | intensity upgrades for neutrino experiments ⓘ |
| usedFor |
collider operations support
ⓘ
fixed-target experiments ⓘ neutrino experiments ⓘ particle physics experiments ⓘ |
| usedInProgram |
NuMI beamline
ⓘ
surface form:
Fermilab neutrino program
Tevatron ⓘ
surface form:
Tevatron Run II
|
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 Injector Description of subject: The Main Injector is a high-energy particle accelerator at Fermilab used to accelerate and deliver proton and antiproton beams for particle physics experiments.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.