Affiliation: | 1. Department of Physics, Government College University Lahore, Lahore 54000, Pakistan;2. Gujranwala Institute of Nuclear Medicine and Radiotherapy (GINUM), Gujranwala, Pakistan;3. Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich GmbH, d-52425 Jülich, Germany |