JOURNAL ARTICLE

Determination of internal gamma dose assessment due to natural radioactivity for river sand using a gamma-ray spectrometer.

  • Published In: Radiation Protection Dosimetry, 2023, v. 199, n. 11. P. 1159 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Kumar, Chinnasamy Kuppan Senthil; Chandrasekaran, Ananthanarayanan; Gurumoorthy, Chandrasekharan; Sathish, Vilvanathan 3 of 3

Abstract

This article focuses on measuring the activity concentrations of natural radionuclides—radium-226 (^226Ra), thorium-232 (^232Th), and potassium-40 (^40K)—in river sand samples from the Ponnai River in Tamil Nadu, India, using high-purity germanium (HPGe) gamma-ray spectrometry. The study found mean activity concentrations of 31 Bq/kg for ^226Ra, 84 Bq/kg for ^232Th, and 416 Bq/kg for ^40K, with ^232Th and ^40K exceeding global average values while ^226Ra was below. Radiological hazard assessment using the radium equivalent activity (Raeq) index indicated that all samples, except one, were below the recommended safety limit of 370 Bq/kg, suggesting the sand is safe for use in building construction. The spatial distribution of radionuclides varied across the study area, reflecting geological differences.

Additional Information

  • Source:Radiation Protection Dosimetry. 2023/07, Vol. 199, Issue 11, p1159
  • Document Type:Article
  • Subject Area:Science
  • Publication Date:2023
  • ISSN:01448420
  • DOI:10.1093/rpd/ncad155
  • Accession Number:164762304
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