Debye–Scherrer method
E518987
The Debye–Scherrer method is an X-ray powder diffraction technique used to determine the crystal structure and lattice parameters of polycrystalline materials.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Debye–Scherrer method canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5420109 — 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: Debye–Scherrer method Context triple: [Peter Debye, knownFor, Debye–Scherrer method]
-
A.
Bragg's law
Bragg's law is a fundamental equation in X-ray crystallography that relates the angles at which X-rays are diffracted by crystal lattice planes to the spacing between those planes.
-
B.
Davisson–Germer experiment
The Davisson–Germer experiment was a landmark 1927 physics experiment that demonstrated the wave nature of electrons through diffraction from a nickel crystal, providing key evidence for quantum mechanics and wave–particle duality.
-
C.
Neumann’s principle in crystallography
Neumann’s principle in crystallography is a fundamental rule stating that the symmetry elements of any physical property of a crystal must include the symmetry elements of the crystal’s point group.
-
D.
Zernike phase-contrast method
The Zernike phase-contrast method is a microscopy technique that converts phase shifts in light passing through transparent specimens into intensity differences, enabling detailed visualization of living cells and other unstained samples.
-
E.
X-rays and Crystal Structure
"X-rays and Crystal Structure" is a foundational scientific work by Lawrence Bragg that explains how X-ray diffraction can be used to determine the atomic structure of crystals.
- 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: Debye–Scherrer method Target entity description: The Debye–Scherrer method is an X-ray powder diffraction technique used to determine the crystal structure and lattice parameters of polycrystalline materials.
-
A.
Bragg's law
Bragg's law is a fundamental equation in X-ray crystallography that relates the angles at which X-rays are diffracted by crystal lattice planes to the spacing between those planes.
-
B.
Davisson–Germer experiment
The Davisson–Germer experiment was a landmark 1927 physics experiment that demonstrated the wave nature of electrons through diffraction from a nickel crystal, providing key evidence for quantum mechanics and wave–particle duality.
-
C.
Neumann’s principle in crystallography
Neumann’s principle in crystallography is a fundamental rule stating that the symmetry elements of any physical property of a crystal must include the symmetry elements of the crystal’s point group.
-
D.
Zernike phase-contrast method
The Zernike phase-contrast method is a microscopy technique that converts phase shifts in light passing through transparent specimens into intensity differences, enabling detailed visualization of living cells and other unstained samples.
-
E.
X-rays and Crystal Structure
"X-rays and Crystal Structure" is a foundational scientific work by Lawrence Bragg that explains how X-ray diffraction can be used to determine the atomic structure of crystals.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
X-ray diffraction technique
ⓘ
powder diffraction method ⓘ |
| advantage |
does not require single crystals
ⓘ
suitable for polycrystalline and powdered samples ⓘ |
| alsoKnownAs |
Debye–Scherrer powder method
NERFINISHED
ⓘ
powder camera method ⓘ |
| analyzes |
intensities of diffraction rings
ⓘ
positions of diffraction rings ⓘ |
| appliesTo |
ceramics
ⓘ
metals ⓘ minerals ⓘ polycrystalline materials ⓘ powdered crystalline compounds ⓘ |
| basedOn |
Bragg diffraction
ⓘ
Bragg's law NERFINISHED ⓘ |
| component |
X-ray source
ⓘ
collimator or slit system ⓘ cylindrical sample holder or capillary ⓘ photographic film or position-sensitive detector ⓘ |
| developedBy |
Paul Scherrer
NERFINISHED
ⓘ
Peter Debye NERFINISHED ⓘ |
| developedIn | 1916 ⓘ |
| enables |
determination of unit cell dimensions
ⓘ
identification of unknown crystalline phases ⓘ indexing of diffraction peaks ⓘ |
| field |
crystallography
ⓘ
materials science ⓘ solid-state physics ⓘ |
| historicalSignificance | one of the earliest X-ray powder diffraction methods ⓘ |
| measurementOutput |
diffraction angle 2θ
ⓘ
interplanar spacing d ⓘ |
| produces | diffraction rings on photographic film or detector ⓘ |
| relatedTo |
Laue method
NERFINISHED
ⓘ
Rietveld refinement ⓘ single-crystal X-ray diffraction ⓘ |
| requires |
finely powdered sample
ⓘ
monochromatic X-ray beam ⓘ |
| usedFor |
determining crystal structure of polycrystalline materials
ⓘ
determining lattice parameters of crystalline materials ⓘ measuring crystallite size ⓘ measuring microstrain in crystals ⓘ phase identification in polycrystalline samples ⓘ |
| uses |
X-rays
ⓘ
powdered or polycrystalline samples ⓘ |
| usesEquation | Scherrer equation for crystallite size ⓘ |
| usesGeometry | transmission geometry ⓘ |
| usesInstrument | Debye–Scherrer camera NERFINISHED ⓘ |
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: Debye–Scherrer method Description of subject: The Debye–Scherrer method is an X-ray powder diffraction technique used to determine the crystal structure and lattice parameters of polycrystalline materials.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.