T4 beam line
E139227
The T4 beam line is a high-energy particle beam line in CERN’s SPS North Area used to deliver secondary beams for fixed-target experiments and detector tests.
All labels observed (1)
| Label | Occurrences |
|---|---|
| T4 beam line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1166322 — 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: T4 beam line Context triple: [North Area of CERN SPS, hasBeamLine, T4 beam line]
-
A.
T2 beam line
The T2 beam line is a particle beam transport line in CERN’s Super Proton Synchrotron (SPS) North Area used to deliver high-energy beams to experimental facilities.
-
B.
K4 beam line
The K4 beam line is a high-energy particle beam line in CERN’s Super Proton Synchrotron North Area used to deliver secondary beams for fixed-target experiments.
-
C.
M4 beam line
The M4 beam line is a particle beam transport line at CERN’s Super Proton Synchrotron North Area, used to deliver high-energy beams to experimental facilities.
-
D.
K6 beam line
The K6 beam line is a dedicated particle beam transport line in CERN’s SPS North Area used to deliver high-energy secondary beams to experimental facilities.
-
E.
M6 beam line
The M6 beam line is a particle beam transport line in CERN’s SPS North Area used to deliver high-energy beams to experimental facilities.
- 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: T4 beam line Target entity description: The T4 beam line is a high-energy particle beam line in CERN’s SPS North Area used to deliver secondary beams for fixed-target experiments and detector tests.
-
A.
T2 beam line
The T2 beam line is a particle beam transport line in CERN’s Super Proton Synchrotron (SPS) North Area used to deliver high-energy beams to experimental facilities.
-
B.
K4 beam line
The K4 beam line is a high-energy particle beam line in CERN’s Super Proton Synchrotron North Area used to deliver secondary beams for fixed-target experiments.
-
C.
M4 beam line
The M4 beam line is a particle beam transport line at CERN’s Super Proton Synchrotron North Area, used to deliver high-energy beams to experimental facilities.
-
D.
K6 beam line
The K6 beam line is a dedicated particle beam transport line in CERN’s SPS North Area used to deliver high-energy secondary beams to experimental facilities.
-
E.
M6 beam line
The M6 beam line is a particle beam transport line in CERN’s SPS North Area used to deliver high-energy beams to experimental facilities.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
accelerator beam line
ⓘ
particle beam line ⓘ |
| acceleratorSource | Super Proton Synchrotron primary beam ⓘ |
| beamType | high-energy particle beam ⓘ |
| country | Switzerland ⓘ |
| energyRange | high-energy SPS secondary beam energies ⓘ |
| hasEnvironment | fixed-target experimental area ⓘ |
| infrastructureType | test beam facility ⓘ |
| locatedIn | SPS North Area ⓘ |
| operator | CERN ⓘ |
| partOf |
North Area of CERN SPS
ⓘ
surface form:
CERN North Area experimental infrastructure
CERN accelerator complex ⓘ Super Proton Synchrotron ⓘ |
| physicsProgram |
hadron physics
ⓘ
nuclear physics ⓘ particle detector R&D ⓘ |
| servesFacility |
North Area of CERN SPS
ⓘ
surface form:
SPS North Area experimental halls
|
| status | operational ⓘ |
| supports |
calorimeter tests
ⓘ
fixed-target particle physics experiments ⓘ radiation hardness studies ⓘ tracking detector tests ⓘ |
| usedFor |
detector tests
ⓘ
fixed-target experiments ⓘ |
| uses | secondary particle beams ⓘ |
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: T4 beam line Description of subject: The T4 beam line is a high-energy particle beam line in CERN’s SPS North Area used to deliver secondary beams for fixed-target experiments and detector tests.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.