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Non‐Ideal Diffusion of Argon in Potassium Chloride
Author(s) -
Schmeling P.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670200221
Subject(s) - argon , diffusion , irradiation , potassium , activation energy , crystal (programming language) , chemistry , chloride , materials science , radiochemistry , analytical chemistry (journal) , thermodynamics , physics , organic chemistry , computer science , nuclear physics , programming language
The diffusion of Ar 39 and Ar 41 in single crystals of potassium chloride is studied for the temperature range in which non‐ideal diffusion is predominant. The results are compared with the analysis of obstructed rare‐gas movement by Gaus, and it is shown that all or most of the argon atoms are trapped in crystal defects after irradiation with neutrons. The mechanism for the release of the atoms is sensitive to variations in the irradiation dose and can be related to an activation energy of 2.4 eV only for the lowest doses.