K4 beam line
E137093
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| K4 beam line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1166315 — 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: K4 beam line Context triple: [North Area of CERN SPS, hasBeamLine, K4 beam line]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
M2 beam line
M2 beam line is a high-energy particle beam facility at CERN’s Super Proton Synchrotron used to deliver intense hadron and muon beams for fixed-target experiments such as COMPASS.
-
E.
SPEAR3 synchrotron light source
The SPEAR3 synchrotron light source is a third-generation storage-ring facility at SLAC that produces intense, highly focused X-ray beams for advanced materials and biological research.
- 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: K4 beam line Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
M2 beam line
M2 beam line is a high-energy particle beam facility at CERN’s Super Proton Synchrotron used to deliver intense hadron and muon beams for fixed-target experiments such as COMPASS.
-
E.
SPEAR3 synchrotron light source
The SPEAR3 synchrotron light source is a third-generation storage-ring facility at SLAC that produces intense, highly focused X-ray beams for advanced materials and biological research.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
accelerator beam line
ⓘ
particle beam line ⓘ |
| hasApplication |
hadron physics
ⓘ
nuclear physics ⓘ particle detector tests ⓘ |
| hasBeamType | secondary particle beam ⓘ |
| hasEnergyType | high-energy ⓘ |
| hasFacilityType | fixed-target beam line ⓘ |
| hasFunction | deliver secondary beams ⓘ |
| hasInfrastructure |
beam diagnostics
ⓘ
beam transport magnets ⓘ experimental target stations ⓘ |
| locatedIn |
CERN
ⓘ
CERN Prevessin–Meyrin site ⓘ
surface form:
Meyrin site (CERN)
SPS North Area ⓘ
surface form:
SPS North Experimental Area
|
| operatedBy | CERN ⓘ |
| partOf |
SPS North Area
ⓘ
Super Proton Synchrotron ⓘ |
| physicsDomain |
experimental particle physics
ⓘ
high-energy physics ⓘ |
| usedBy |
fixed-target particle physics experiments
ⓘ
particle physics experiments ⓘ |
| usedFor | fixed-target experiments ⓘ |
| usesPrimaryBeamFrom | Super Proton Synchrotron ⓘ |
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: K4 beam line Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.