Formation of Large Defects in Neutron Irradiated Alkali Halide Crystals
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.
KeywordsVoid Formation Spherical Bubble Neutron Dose Alkali Halide Crystal Intrinsic Point Defect
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- 2).E.Mollwo,Nachr.Akad.Wiss.Göttingen,Math.Phys. Klasse (1941)51Google Scholar
- 4).B. V. Budylin, Y. F. Kozlov, Sov. Phys. Solid State 6 (1964) 1237Google Scholar
- 5).K. I.zumi, J. Phys. Soc. Japan 26 (1969) 1451Google Scholar
- 7).F. W. Fel ix, J. Physique 34 (1973) C9–149Google Scholar
- 8).F.W.Felix, M.Müller, Indian J.Appl.Pure Phys., in pressGoogle Scholar
- 10).C. Rühenbeck, Z. Phys. 207 (1967) 4. 46Google Scholar