Equation 1 · Part 2 · Materials Discovery and Degradation in Practice: An Advanced Technical Guide
Symbol λ
What this part means
the known X-ray wavelength.
Its job in the formula
λ is part of the quantity the equation computes from the expression on the right.
Full expression→Symbol λ→Article meaning
Where the article explains it
where is the known X-ray wavelength, d is the spacing between a family of lattice planes, and is half the scattering angle at which a peak appears.
The passage around this formula
…crystallites to the beam, and the resulting pattern of peak positions and intensities is a fingerprint of the unit cell and its symmetry. Peak positions locate the lattice through Bragg’s law, . where is the known X-ray wavelength, d is the spacing between a family of lattice planes, and is half the scattering angle at which a peak appears. Peak positions alone give the lattice parameters; peak intensities and shapes carry the rest of the story, and that is where the real work is.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the article section
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