Radius of HOLZ Rings
- Practical Electron Microscopy and Database -
- An Online Book -

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This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.
 

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The radius of the HOLZ rings is given by the interception of the Ewald sphere with the allowed HOLZ spots of the reciprocal lattice. In practice, the radius of the HOLZ ring is a direct measure of the interplanar spacing of the crystal along the direction of the directly transmitted electron beam and can be approximately given by,

        Radius of HOLZ Rings ----------------------------------- [2677]
where,
          L -- The camera length,
          λ -- The wavelength of the electron beam,
          H -- The interplanar spacing of the crystal in the specimen.

 

 

 

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