Radiation damage in NaCl. III. Melting phenomena of sodium colloids

J. Seinen; J. R. W. Weerkamp; J. C. Groote; H. W. den Hartog

doi:10.1103/PhysRevB.50.9793

Radiation damage in NaCl. III. Melting phenomena of sodium colloids

J. Seinen, J. R. W. Weerkamp, J. C. Groote, and H. W. den Hartog

Phys. Rev. B 50, 9793 – Published 1 October 1994

Abstract

We report measurements on the melting behavior of colloids produced in irradiated NaCl. With differential scanning calorimetry (DSC) several latent-heat peaks near the melting temperature of pure bulk sodium metal have been detected. It appears that the total latent heat in these peaks is an accurate measure of the amount of damage in the crystal. Peak temperature and shape provide more detailed information about the properties of the colloids. The different melting temperatures can be explained by differences in the typical sizes of the colloid, based on the theory for melting of small particles. This DSC technique provides a method to evaluate the production of radiation damage in detail without changing the properties of the damaged crystal.

Received 2 March 1994

DOI:https://doi.org/10.1103/PhysRevB.50.9793

Authors & Affiliations

J. Seinen, J. R. W. Weerkamp, J. C. Groote, and H. W. den Hartog

Solid State Physics Laboratory, University Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands

Radiation damage in NaCl. I. Optical-absorption experiments on heavily irradiated samples

J. R. W. Weerkamp, J. C. Groote, J. Seinen, and H. W. den Hartog

Phys. Rev. B 50, 9781 (1994)

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Vol. 50, Iss. 14 — 1 October 1994

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