Determination of atomic cross-sections and effective atomic numbers for some alloys

The transmission of gamma-rays at the energies, 81, 356, 511, 662, 835, 1274 and 1332 keV has been studied on the alloys brass, bronze, steel, aluminum±silicon and lead±antimony. The mass absorption coecients have been measured. The total interaction cross-sections and e€ective atomic numbers have been determined on the basis of mixture rule and compared with the results obtained from theory