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Radial parameters of the brightest peaks/rings
| R (pix) | h | k | R-Ratio |
|---|---|---|---|
| 71.4 | 0 | 1 | 1 |
| 104.7 | 1 | 0 | 1.466 |
| 114.3 | -1 | 1 | 1.601 |
| 144.6 | |||
| 159.9 | |||
| 210.1 | |||
| 330.1 | |||
| 400.4 | |||
| Ceramic | rings | ||
| 438.7 | |||
| 626.1 | |||
| 784.6 |
The three peaks with smallest radial parameters gives gamma = 101.53°.
Evaluated lattice parameters:
| Code Block |
|---|
# Triclinic crystal cell parameters:
# a = 18.55 A
# b = 27.19 A
# c = 4.86 A
# gamma = 78.47 deg or 101.53
# 3-d space primitive vectors:
# a1 = (18.55, 0.0, 0.0)
# a2 = (-5.435623727109098, 26.645523961582906, 0.0)
# a3 = (0.0, 0.0, 4.8601)
# reciprocal space primitive vectors:
# b1 = [ 0.05390836 0.01099718 -0. ]
# b2 = [ 0. 0.03752976 0. ]
# b3 = [ 0. -0. 0.20575708] |
Referencesq
- Crystal structure, Bravais lattice, Crystal system, Primitive cell, Lattice constant - 3-d lattice
- Reciprocal lattice, Ewald's sphere, Surface diffraction, Miller index - reciprocal space
- PDG-2014
- X-ray crystallography, Bragg's law, Fiber diffraction
- my not on units for q and reciprocal space
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