1. Pakistan Institute of Engineering and Applied Sciences, Department of Physics and Applied Mathematics, Nilore, Islamabad 45650, PakistanbCenter for Nuclear Medicine and Radiotherapy (CENAR), Brewery Road, 17, Quetta, Pakistan
2. Pakistan Institute of Engineering and Applied Sciences, Department of Physics and Applied Mathematics, Nilore, Islamabad 45650, PakistancIslamia College (University), Department of Physics, Peshawar, Pakistan
3. Pakistan Institute of Engineering and Applied Sciences, Department of Physics and Applied Mathematics, Nilore, Islamabad 45650, Pakistan
4. Swat Institute of Nuclear Medicine, Oncology and Radiotherapy (SINOR), Saidu Sharif, 50, Swat, Pakistan