1. Department of Physics, Faculty of Science; Universiti Teknologi Malaysia, 81310; UTM Skudai Johor Malaysia
2. Radiation Protection Directorate; Energy and Minerals Regulatory Commission, 11183; Amman Jordan
3. Department of Medical Radiography; Al-Azhar University; Gaza Strip Palestine
4. Nuclear Engineering Programme, Faculty of Petroleum and Renewable Energy Engineering; Universiti Teknologi; Malaysia