ELENA
E210177
ELENA is a CERN accelerator ring designed to decelerate antiprotons to very low energies for precision antimatter experiments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ELENA canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1889465 — 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: ELENA Context triple: [GBAR experiment, usesFacility, ELENA]
-
A.
Elena
Elena is a feminine given name of Greek origin, commonly used in many languages as a variant of Helen or Helena.
-
B.
Valeria
Valeria is the clever, sharp-tongued heroine of George Farquhar’s Restoration comedy "The Witty Fair One."
-
C.
Valeria
Valeria was a Roman imperial princess and later empress, best known as the daughter of Emperor Diocletian and for her tragic fate during the political turmoil of the Tetrarchy.
-
D.
Carmelina
Carmelina is a lesser-known Broadway musical with music by Burton Lane and lyrics by Alan Jay Lerner, loosely based on the film "Buona Sera, Mrs. Campbell."
-
E.
Cecilia
Cecilia is a feminine given name of Latin origin, traditionally associated with Saint Cecilia, the patron saint of music.
- 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: ELENA Target entity description: ELENA is a CERN accelerator ring designed to decelerate antiprotons to very low energies for precision antimatter experiments.
-
A.
Elena
Elena is a feminine given name of Greek origin, commonly used in many languages as a variant of Helen or Helena.
-
B.
Valeria
Valeria was a Roman imperial princess and later empress, best known as the daughter of Emperor Diocletian and for her tragic fate during the political turmoil of the Tetrarchy.
-
C.
Valeria
Valeria is the clever, sharp-tongued heroine of George Farquhar’s Restoration comedy "The Witty Fair One."
-
D.
Carmelina
Carmelina is a lesser-known Broadway musical with music by Burton Lane and lyrics by Alan Jay Lerner, loosely based on the film "Buona Sera, Mrs. Campbell."
-
E.
Cecilia
Cecilia is a feminine given name of Latin origin, traditionally associated with Saint Cecilia, the patron saint of music.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
CERN facility
ⓘ
particle accelerator ⓘ storage ring ⓘ |
| acronymFor | Extra Low ENergy Antiproton ring ⓘ |
| allows | simultaneous operation of multiple antimatter experiments ⓘ |
| becameOperational | around 2017 ⓘ |
| circumference | about 30.4 metres ⓘ |
| commissioningStartDate | 2016 ⓘ |
| connectedTo | Antiproton Decelerator ⓘ |
| country | Switzerland ⓘ |
| designStartDate | around 2011 ⓘ |
| energyRange | from about 5.3 MeV to about 100 keV ⓘ |
| feeds |
antimatter experiments at CERN Antiproton Decelerator hall
ⓘ
experiments such as AEGIS ⓘ experiments such as ALPHA ⓘ experiments such as ASACUSA ⓘ experiments such as ATRAP ⓘ experiments such as GBAR ⓘ |
| fullName | Extra Low ENergy Antiproton ring ⓘ |
| function | further decelerate antiprotons from the Antiproton Decelerator ⓘ |
| fundedBy | CERN member states ⓘ |
| hasComponent |
bending magnets
ⓘ
electron cooler ⓘ electrostatic transfer lines ⓘ quadrupole magnets ⓘ radio-frequency cavities ⓘ |
| improves | beam quality of antiprotons ⓘ |
| locatedIn |
CERN
ⓘ
Geneva ⓘ Switzerland ⓘ |
| managedBy | CERN ⓘ |
| operator | CERN ⓘ |
| partOf | CERN accelerator complex ⓘ |
| predecessorSystem | Antiproton Decelerator standalone operation ⓘ |
| purpose |
deceleration of antiprotons
ⓘ
supply of low-energy antiprotons for experiments ⓘ |
| reduces |
longitudinal emittance of antiproton beams
ⓘ
transverse emittance of antiproton beams ⓘ |
| scientificField |
accelerator physics
ⓘ
antimatter physics ⓘ particle physics ⓘ |
| shape | circular ring ⓘ |
| technology | synchrotron storage ring ⓘ |
| usedFor |
antihydrogen production
ⓘ
gravity measurements with antimatter ⓘ precision antimatter experiments ⓘ tests of fundamental symmetries ⓘ |
| uses |
electron cooling
ⓘ
stochastic cooling ⓘ |
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: ELENA Description of subject: ELENA is a CERN accelerator ring designed to decelerate antiprotons to very low energies for precision antimatter experiments.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.