Lattice Spacing Measurements and Avogadro’s Number

  • M. Hart
  • I. G. Morgan
Conference paper


The present unsatisfactory situation concerning the value of Avogadro’s number has been briefly discussed by the authors in an earlier paper (1) in which was described a proposed method of direct measurement based on a new technique of X-ray interferometry (2,3) which provides a means for absolute determination of the lattice spacing of crystals.


Silicon Crystal Double Crystal Zebra Pattern Optical Interferometry Extinction Depth 
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Copyright information

© Plenum Publishing Company Ltd 1972

Authors and Affiliations

  • M. Hart
    • 1
  • I. G. Morgan
    • 2
  1. 1.Department of PhysicsUniversity of BristolBristolEngland
  2. 2.National Physical LaboratoryTeddington, MiddlesexEngland

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