Channelling of MeV H and He Ions in Alkali Halides at 'Zero Dose' Measurements

Frenkel Defects in Alkali Halides

Dopant aggregation and precipitation in alkali halides doped with divalent ions

We have used reliable computer simulation techniques and accurate lattice and defect interionic potentials to calculate the binding energies of a range of possible structures for clusters involving two or more dopant cations for NaCI, KC1 and KBr containing Mg2+ and for the NaCl : BaZt system. Aggregation mechanisms involving both nn and nnn dipoles have been considered and the relative importa...

Excitons and Radiation Damage in Alkali Halides

The quantum mechanical description of atomic spectra was the beginning of a new era of quantum physics which today is the theoretical basis of nuclear and solid state physics, chemistry, and biochemistry [1,2]. Quantum mechanics opened also a new look to solid state physics which will be illustrated by the development of the conception of excitons [3]. One of the basic quantum mechanical proble...

Calculation of the total cross section for the ionization of H, He, Ne and Ar atoms by bare ions at the high energy range

In the present work, the total cross-section for the ionization of  H, He, Ne and Ar atoms by +He2+ ، H+ ، Li3 ions has been calculated. In these calculations, a binary encounter approximation in the form of a two-body process between projectile ions and atomic electrons at the high energy range has been implemented. In order to enter the nuclear role of the target atom, the atomic electron vel...

Complex metal halides in fused alkali nitrates

The results of this investigation have provided additional information by chemical methods of the extent of association in fused salts. Association effects observed in solubility and rate studies in fused alkali nitrate are shown to be consistent with the assumption that complex ions such as those existing in aqueous solutions are formed between metal ions and halide ions. In addition, the rate...