Interactions of Interstitial Centers with Monovalent Impurities in KBr Crystals

Abstract
Formation of interstitial centers in pure and Na + - and Li + - doped KBr by X-irradiation at LHeT and at LNT is studied. The results are discussed in terms of the dynamic and static interaction of the interstitial centers with monovalent impurities. It is shown that the interstitial centers are stabilized by the association with the monovalent impurities and that the stability of the complex is higher for Li + than for Na + . The optical transitions of interstitial centers are discussed.