LHC injector chain
E11858
The LHC injector chain is the sequence of accelerators and beamlines at CERN that progressively boost and prepare particle beams before they are injected into the Large Hadron Collider.
All labels observed (6)
| Label | Occurrences |
|---|---|
| LHC injector chain canonical | 3 |
| LHC beamline | 2 |
| CERN Heavy-Ion Injector Chain | 1 |
| CERN injector chain | 1 |
| LHC heavy-ion injection chain | 1 |
| LHC injector complex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T95224 — 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: LHC injector chain Context triple: [Linac4, partOf, LHC injector chain]
-
A.
Linac4
Linac4 is a linear accelerator at CERN that serves as the first stage of the proton acceleration chain for the Large Hadron Collider and other experiments.
-
B.
Compact Linear Collider test facilities
The Compact Linear Collider test facilities are experimental research installations at CERN dedicated to developing and validating technologies for a future high-energy electron–positron linear collider.
-
C.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
-
D.
Proton Synchrotron
The Proton Synchrotron is a historic circular particle accelerator at CERN that has played a key role in high-energy physics research and in feeding beams to larger colliders.
-
E.
Super Proton Synchrotron
The Super Proton Synchrotron is a high-energy circular particle accelerator at CERN that serves both as a research machine and as a key injector for the Large Hadron Collider.
- 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: LHC injector chain Target entity description: The LHC injector chain is the sequence of accelerators and beamlines at CERN that progressively boost and prepare particle beams before they are injected into the Large Hadron Collider.
-
A.
Linac4
Linac4 is a linear accelerator at CERN that serves as the first stage of the proton acceleration chain for the Large Hadron Collider and other experiments.
-
B.
Compact Linear Collider test facilities
The Compact Linear Collider test facilities are experimental research installations at CERN dedicated to developing and validating technologies for a future high-energy electron–positron linear collider.
-
C.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
-
D.
Proton Synchrotron
The Proton Synchrotron is a historic circular particle accelerator at CERN that has played a key role in high-energy physics research and in feeding beams to larger colliders.
-
E.
Super Proton Synchrotron
The Super Proton Synchrotron is a high-energy circular particle accelerator at CERN that serves both as a research machine and as a key injector for the Large Hadron Collider.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
injector chain
ⓘ
particle accelerator complex ⓘ |
| commissionedFor |
Large Hadron Collider
ⓘ
surface form:
LHC
|
| commissioningStartYear | 2005 ⓘ |
| country |
France
ⓘ
Switzerland ⓘ |
| endPoint | LHC injection points ⓘ |
| feedsInto | Large Hadron Collider ⓘ |
| fullOperationWithLHCStartYear | 2010 ⓘ |
| hasComponentRole |
LEIR accumulates and cools heavy‑ion beams
ⓘ
LINACs provide initial acceleration from ion sources ⓘ PS performs further acceleration and beam manipulation ⓘ PSB increases proton energy and intensity ⓘ SPS accelerates beams to injection energy for the LHC ⓘ |
| includes |
LEIR
ⓘ
Linac2 ⓘ
surface form:
LINAC2
LINAC3 ⓘ Linac4 ⓘ
surface form:
LINAC4
PS to SPS transfer line ⓘ PSB to PS transfer line ⓘ Proton Synchrotron ⓘ Proton Synchrotron Booster ⓘ SPS to LHC transfer lines ⓘ Super Proton Synchrotron ⓘ transfer lines TI2 and TI8 ⓘ |
| locatedIn | CERN ⓘ |
| operator | CERN Beams Department ⓘ |
| partOf | CERN accelerator complex ⓘ |
| providesBeamEnergyRange | from MeV scale to hundreds of GeV ⓘ |
| purpose |
pre‑accelerate and condition beams before LHC injection
ⓘ
provide high‑energy particle beams to the LHC ⓘ |
| startPoint |
Linac2
ⓘ
surface form:
LINAC2
Linac4 ⓘ
surface form:
LINAC4
|
| startPointForIons |
LEIR
ⓘ
LINAC3 ⓘ |
| supportsOperationMode |
heavy‑ion collisions
ⓘ
proton–ion collisions ⓘ proton–proton collisions ⓘ |
| upgradedFor |
High-Luminosity LHC
ⓘ
surface form:
High‑Luminosity LHC
|
| upgradeFocus |
higher beam brightness
ⓘ
higher beam intensity ⓘ improved beam quality ⓘ |
| upgradeProgramme | LIU project ⓘ |
| upgradeStartYear | 2013 ⓘ |
| usesParticleType |
heavy ions
ⓘ
protons ⓘ |
| usesTechnology |
radio‑frequency acceleration
ⓘ
synchrotron magnets ⓘ transfer lines with pulsed magnets ⓘ |
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: LHC injector chain Description of subject: The LHC injector chain is the sequence of accelerators and beamlines at CERN that progressively boost and prepare particle beams before they are injected into the Large Hadron Collider.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
LHC beamline
this entity surface form:
LHC heavy-ion injection chain
this entity surface form:
LHC beamline