Related Experiment Video
Updated: Jan 4, 2026

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band
Published on: May 2, 2018
UNCERTAINTY EVALUATION IN DOSE ASSESSMENT DUE TO SPATIAL DISTRIBUTION OF NORM IN BEACH SANDS OF SOUTHEAST COAST OF
S Chandrasekaran1, G Sankaran Pillai1, R Baskaran1
1Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute, Kalpakkam, Tamil Nadu, India.
Abstract:
A study on radionuclide distribution along coastal stretch in high background areas is constantly attracted to many researchers around the world. In the present study, the concentration of radionuclides in beach sands along the southeast coastal region of India has been studied in detail. Concentration of radionuclides is measured using gamma spectrometry at 148 pre-determined locations. It is found that 238U and 232Th concentrations are varying in the range from 3 (BDL) to 298.9 and 1150.2 Bq kg-1, respectively. Concentration of 40K in beach sand varied from 11 to 1743.4 Bq kg-1. The measured activity levels of radionuclides were compared with earlier studies carried out by various researchers in the same region under study. The related radiological parameters of interest were also determined and compared with the internationally recommended values. With an increase in emphasis on quality in dose assessment methods, dose to human population living in the vicinity requires uncertainty evaluation, which is carried out by taking into account variation in the activity values. This study would serve as a baseline radiological mapping for the southeast coast region of India for environmental impact assessment prior to plan of nuclear facility in the future.
Related Concept Videos
Uncertainty: Overview
Propagation of Uncertainty from Random Error
Propagation of Uncertainty from Systematic Error
Uncertainty: Confidence Intervals
The Uncertainty Principle
Estimating Population Mean with Unknown Standard Deviation
William S. Gosset (1876–1937) of the...

