1. Faculty of Health Sciences, School of Medical Imaging, Universiti Sultan Zainal Abidin (UniSZA), Kuala Nerus, Kuala Terengganu, Terengganu, Malaysia
2. High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
3. Department of Physics, Faculty of Science, Universiti Teknologi Malaysia (UTM), Skudai, Johor, Malaysia