Institution: | 1. National Center for Physics, Quaid-i-Azam University campus, 45230 Islamabad, Pakistan;2. Institute of Physics and Electronics, University of Peshawar, 25120 Peshawar, Pakistan;3. National Tokamak Fusion Program, 3329 Islamabad, Pakistan;4. Department of Physics, Kohat University of Science and Technology, 26000 Kohat, Pakistan;5. Department of Physics, Gomal University, 29050 D.I. Khan, Pakistan;6. Department of Physics, Quaid-i-Azam University, 45230 Islamabad, Pakistan |