On the Dissolution Characteristics of Kr-Bombardment Lithium Flouride

Abstract

<p>A study has been made of crystal dissolution of Kr-bombarded lithium flouride in aqueous solutions of ferric chloride. Bombarded surfaces were observed to have a higher dissolution rate than the non-bombarded ones, the dissolution rate itself being a function of ion-concentration. A bombarded and annealed surface was found to have an even higher dissolution rate than a bombarded surface.</p> <p>Nucleation of pits was observed to depend on the dose of bombardment, A dose of 10^5 and 10^6 ions/cm^2 caused uniform dissolution of the surface without any pit-formation but a dose of 10^13 and 10^14 ions/cm^2 was found to cause pitting even in the radiation damage as indicated by the activity of the radioactive krypton. In the former case uniform dissolution is explained by the relative increase in the density of Frenkel defects.</p>