International Journal of Engineering and Information Systems (IJEAIS)   Year: 2021 | Volume: 5 | Issue: 3 | Page No.: 48-52 Synthesis Silver Nanoparticle and Study the Effect of Doping by Copper Nanoparticles and Radioactivity on the Absorbance Value Mohammed Abdelaziz Mohammed, Rawia Abd Elgani Elobaid, , Abdalsakhi S. M.H Nafisa Badar Eldeen , Ali Sulaiman Mohamed &Amel Abdallah Ahmed Elfaki, Abstract: Silver Nanoparticle materials had been synthesized to produce new alternate substance for reducing the rare or high cost of industrial materials. In this work, three samples of silver nitrate were prepared with different concentrations (0.04, 0.05 and 0.06) molar by chemical method, and synthesis copper Nanoparticles with 0.01molar and doping three other Silver Nanoparticle sample with different concentrations (0.04, 0.05 and 0.06) molar .And effect with gamma ray on the all sample that mead . The optical absorbance properties were investigated for all sample that made before and after to expose by used the ultraviolet-visible (UV-Vis) spectroscopies. The optical absorbance was changed confirm the sample treatment. The absorption value of Silver Nanoparticle decreasing by doped with copper oxide and increasing by gamma ray.