Siam Physics Congress 2017

Frequency Distribution of Specific Activities and Radiological Hazard Assessment in Surface Beach Sand Samples Collected from Bangsaen beach in Chonburi Province, Thailand

24 May 2017, 15:10

50m

Rayong Marriott Resort & Spa

Poster Plasma and Ion Physics, Nuclear and Radiation Physics Poster Presentation I

Speaker

Nopparit Changkit

Description

The specific activities of natural radionuclides (${}^4$${}^0$K, ${}^2$${}^2$${}^6$Ra and ${}^2$${}^3$${}^2$Th) in 50 surface beach sand samples collected from Bangsaen beach in Chonburi province in the easthern region of Thailand, were measured and evaluated. Experimental results were obtained by using a high-purity germanium (HPGe) detector and gamma spectrometry analysis system in the special laboratory at Thailand Institute of Nuclear Technology (Public Organization). The IAEA-SOIL-375 reference material was used to analyze the concentration of ${}^4$${}^0$K, ${}^2$${}^2$${}^6$Ra and ${}^2$${}^3$${}^2$Th in all samples. It was found that the specific activities of ${}^4$${}^0$K, ${}^2$${}^2$${}^6$Ra and ${}^2$${}^3$${}^2$Th were ranged from 510.85 - 771.35, 8.17 - 17.06 and 4.25 - 15.68 Bq/kg. Furthermore, frequency distribution of the specific activities were studied, analyzed and found to be the asymmetrical distribution by using a statistical computer program. Moreover, four radiological hazard indices for the investigated area were also calculated by using the median values of specific activities of ${}^4$${}^0$K, ${}^2$${}^2$${}^6$Ra and ${}^2$${}^3$${}^2$Th. The results were also compared with the Office of Atoms for Peace (OAP) annual report data, Thailand and global radioactivity measurement and evaluations.

Peer reviewing

Paper

Accepted on 17 Jul 2017 by Papichaya Chaisakul

Nopparit_Changkit_FullpaperforSPC2017__31_03_2017_.pdf