Formation of Large Defects in Neutron Irradiated Alkali Halide Crystals

  • F. W. Felix
  • W. E. Montserrat Benavent


Several authors have described the formation of large voids in alkali halide crystals, i.e. large enough to be detected by ordinary light microscopy. The earliest experiments by Mollwo and Pohl concerned the formation of large gas bubbles through a chemical reaction with suitable dopants (e.g. by heating KCl crystals doped with CO3 −− in Cl2-atmosphere yielding CO2 and O2) (1, 2). The produced gas accumulated in spherical bubbles. The bubbles transformed into parallelepipedic voids, “negative crystals”, under prolonged thermal treatment. Most of the gas content of the initial bubbles had then been released into the lattice and had left the crystal by diffusion.


Void Formation Spherical Bubble Neutron Dose Alkali Halide Crystal Intrinsic Point Defect 
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Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • F. W. Felix
    • 1
  • W. E. Montserrat Benavent
    • 1
  1. 1.Hahn-Meitner-Institut für KernforschungD 1 Berlin 39Germany

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