Void superlattice formation as self-organization phenomemon. 1. Scaling estimates

The literature on void superlattice formation observed under irradation of metals and insulators is analyzed with a special attention to the self-organization; a general scenario of this process is discussed. A simple relation for the superlattice parameter as a function of the dose rate and temperature is suggested, in a good agreement with existing experimental data. Special attention is paid to analysis of the halogen gas void formation in an electron-irradiated CaF2