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SWIFT HEAVY ION IRRADIATION EFFECTS ON DOPED ALKALI HALIDES

M. Enculescu1,*

Affiliation

  1. National Institute R&D of Materials Physics, 077125, PO Box MG-7, Magurele-Bucharest, Romania

Abstract

The effects produced by heavy ion irradiation in KBr:Ag and KCl:Ag crystals are investigated using optical spectroscopy. For KCl, the results are compared with the effects obtained in the pure crystals. After irradiation with heavy ions up to 11.2 MeV/u specific energy, the absorption bands suffer a series of changes, related to the structure of defects and also to their dimensions. In the high Ag concentrated samples, the Ag+ ions are changing their valence to Ag- while in the samples containing Ag nanoclusters the irradiation induces changes in the nanocluster size..

Keywords

Heavy ions, Radiation effects, Color centers, Alkali halides.

Submitted at: Nov. 11, 2005
Accepted at: Nov. 24, 2005

Citation

M. Enculescu, SWIFT HEAVY ION IRRADIATION EFFECTS ON DOPED ALKALI HALIDES, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 6, pp. 3047-3056 (2005)