Abstract
Abstract Gamma radiolysis of NaNo3, KNO3, Sr(NO3)2 and Ba(NO3)2 dispersed in sulphate and carbonate matrices has been studied over a wide absorbed dose range. Radiolytic decomposition of the nitrate salt depends on the concentration of the nitrate in admixture as well as the total absorbed dose. G(NO2) values calculated on the basis of electron fraction of the nitrate salt decrease with the increase in the mol% of the nitrate salt. Percent decomposition of Na and K nitrates in sulphate and carbonate admixtures increases with the absorbed dose over a wide concentration range. An admixture of Sr(NO3)2 (5 mol.%) with SrSO4 and SrCO3 exhibited an increase of G(NO2) by 30 and 20-fold respectively. An enhacement of G(NO2) by 25-fold has been observed in case of (5 mol.%) Sr(NO3)2 + BaSo4 admixture. G(NO2) values for Ba(NO3)2 admixtures with BaSO4, BaCO3 and SrSO4 have been found to be much larger (16-fold) than that for the pure salt. The additives seem to exhibit sensitizing effect causing enhanced decompositi...
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