FEL-1
E716419
FEL-1 is one of the primary beamlines of the FERMI free-electron laser facility, delivering coherent extreme-ultraviolet and soft X-ray radiation for advanced scientific experiments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| FEL-1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8177748 — 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: FEL-1 Context triple: [FERMI free-electron laser, hasBeamline, FEL-1]
-
A.
Silkworm missile
The Silkworm missile is a Chinese-built, ship- and shore-launched anti-ship cruise missile that gained notoriety for its use against Gulf shipping during the 1980s Iran–Iraq conflict.
-
B.
BOLIDE missile
The BOLIDE missile is an advanced, short-range, laser-guided surface-to-air missile designed for use with the RBS 70 air defense system to engage fast, low-flying aerial targets.
-
C.
R-1 missile
The R-1 missile was an early Soviet short-range ballistic missile closely based on the German V-2, marking the USSR’s first significant step into rocket and missile technology.
-
D.
R-9 missile
The R-9 missile was a Soviet intercontinental ballistic missile of the early Cold War era, designed to deliver nuclear warheads over long distances as part of the USSR's strategic deterrent forces.
-
E.
SA-7 Grail man-portable air-defense system
The SA-7 Grail is a Soviet-designed, shoulder-fired surface-to-air missile system intended to provide infantry units with portable defense against low-flying aircraft and helicopters.
- 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: FEL-1 Target entity description: FEL-1 is one of the primary beamlines of the FERMI free-electron laser facility, delivering coherent extreme-ultraviolet and soft X-ray radiation for advanced scientific experiments.
-
A.
Silkworm missile
The Silkworm missile is a Chinese-built, ship- and shore-launched anti-ship cruise missile that gained notoriety for its use against Gulf shipping during the 1980s Iran–Iraq conflict.
-
B.
BOLIDE missile
The BOLIDE missile is an advanced, short-range, laser-guided surface-to-air missile designed for use with the RBS 70 air defense system to engage fast, low-flying aerial targets.
-
C.
R-1 missile
The R-1 missile was an early Soviet short-range ballistic missile closely based on the German V-2, marking the USSR’s first significant step into rocket and missile technology.
-
D.
R-9 missile
The R-9 missile was a Soviet intercontinental ballistic missile of the early Cold War era, designed to deliver nuclear warheads over long distances as part of the USSR's strategic deterrent forces.
-
E.
SA-7 Grail man-portable air-defense system
The SA-7 Grail is a Soviet-designed, shoulder-fired surface-to-air missile system intended to provide infantry units with portable defense against low-flying aircraft and helicopters.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | free-electron laser beamline ⓘ |
| application |
atomic and molecular physics
ⓘ
chemical dynamics studies ⓘ coherent diffraction imaging ⓘ condensed matter physics ⓘ nonlinear XUV spectroscopy ⓘ time-resolved spectroscopy ⓘ |
| coherence | coherent ⓘ |
| country | Italy ⓘ |
| facilityType | seeded free-electron laser ⓘ |
| hostFacility |
FERMI@Elettra
ⓘ
linked to:
FERMI free-electron laser
|
| locatedIn |
Elettra Sincrotrone Trieste
ⓘ
Italy ⓘ Trieste ⓘ
linked to:
Trieste, Italy
|
| partOf |
FERMI free-electron laser facility
ⓘ
linked to:
FERMI free-electron laser
|
| photonSource | free-electron laser ⓘ |
| purpose | advanced scientific experiments ⓘ |
| radiationType |
extreme-ultraviolet radiation
ⓘ
soft X-ray radiation ⓘ |
| seedingScheme | external seeding ⓘ |
| sisterBeamline | FEL-2 ⓘ |
| spectralRange |
extreme ultraviolet
ⓘ
soft X-ray ⓘ |
| supports |
pump-probe experiments
ⓘ
ultrafast dynamics studies ⓘ |
| temporalStructure | ultrashort pulses ⓘ |
| userFacility | yes ⓘ |
| uses |
electron accelerator
ⓘ
undulator line ⓘ |
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: FEL-1 Description of subject: FEL-1 is one of the primary beamlines of the FERMI free-electron laser facility, delivering coherent extreme-ultraviolet and soft X-ray radiation for advanced scientific experiments.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.