1. Department of Physics, Mailam Engineering College, Mailam 604304, Tamilnadu, India
2. Vel Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600 062, India
3. Post Graduate and Research Department of Physics, Government Arts College, Thiruvannamalai 606603, Tamilnadu, India
4. Coastal and Environmental Engineering, National Institute of Ocean Technology, Pallikaranai, Chennai 600100, Tamilnadu, India
5. Radiation Safety Section, Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamilnadu, India