Ewald Sphere
A geometric construction of radius 1/λ showing that a reflection is only observed when its reciprocal-lattice point lies on the sphere's surface. Rotating the crystal sweeps reciprocal-lattice points through the sphere, which is why a full dataset requires a rotation series rather than a single still image.
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A geometric construction of radius 1/λ showing that a reflection is only observed when its reciprocal-lattice point lies on the sphere's surface. Rotating the crystal sweeps reciprocal-lattice points through the sphere, which is why a full dataset requires a rotation series rather than a single still image.
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