Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 273: Issue 2
Contribution to the external gamma dose rate from 137Cs and 40K activity concentrations determined in the vertical profile of sandy beaches
Authors:
H. Velasco GEA — Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Cientificas y Técnicas, Ej. de los Andes 950, D5700HHW San Luis, Argentina

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M. Rizzotto GEA — Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Cientificas y Técnicas, Ej. de los Andes 950, D5700HHW San Luis, Argentina

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N. Merkis GEA — Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Cientificas y Técnicas, Ej. de los Andes 950, D5700HHW San Luis, Argentina

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M. Belli Agenzia per la Protezione dell’Ambiente e per i Servizi Tecnici (APAT), Servizio Laboratori, Misure ed Attività di Campo, Via di Castel Romano, 100-00128 Roma, Italy

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U. Sansone International Atomic Energy Agency (IAEA), Agency’s Laboratories Seibersdorf, A-1400 Vienna, Austria

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Pages:
395–399
Online Publication Date:
29 Jun 2007
Publication Date:
01 Aug 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10967-007-6846-3
Restricted access

Abstract  

Sampling sites, located along the Calabria and Basilicata Regions coastal beaches (south of Italy), were selected to assess the external gamma dose rate in air, 1 m above ground, and to estimate the fraction attributable to the radiocesium and radiopotassium contents along the vertical sand profile. Mean values for the gamma dose rate were: 76±30 nGy·h−1. 137Cs and 40K deposition densities in sand samples were determined for each sampling site (mean values 0.24±0.22 kBq·m−2 and 178±88 kBq·m−2, respectively). The 137Cs external dose rate contribution was assessed using a Monte Carlo simulation code. The method gives an estimation of the contribution to the external gamma dose rate of each sand layer along the vertical profile. The dose rate associated with the 137Cs content in sand was 0.16±0.14 nGy·h−1. The cosmic radiation and 40K contributions to the external gamma dose rate were estimated using the UNSCEAR methodologies. The values obtained were 34±3 nGy·h−1 and 18±9 nGy·h−1, respectively.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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