Author, as appears in the article.: Prieto E; Jabaloyas E; Casanovas R; Rovira C; Salvadó M

Department: Ciències Mèdiques Bàsiques

URV's Author/s: Casanovas Alegre, Ramon / Salvadó Artells, Marçal

Keywords: Nuclear emergency Mobile Mapping Gamma spectrometry Environmental monitoring Efficiency calibration

Abstract: © 2019 The Authors This paper presents the development, calibration and testing of a mobile unit for radioactivity monitoring. A 4 × 4 vehicle was equipped with a GPS and two 2″×2″ LaBr3(Ce) scintillation detectors. It was modelled using MC simulations with the EGS5 code to obtain efficiency curves for different source term scenarios. The attenuation produced by the car structure was determined using MC and experimental measurements. A self-developed software was used to acquire and analyse the gamma spectra. In addition, Minimum Detectable Activity Concentrations were calculated for 137Cs and 131I. During standard operation, the mobile unit will create a radiological map of Catalonia (Spain), calculating in real time the ambient dose equivalent H*(10) and the activity concentration of natural and anthropogenic radionuclides. After its set up and calibration, the system was tested on the field and provided adequate results. Therefore, the mobile unit is available to assist in the event of a nuclear emergency tracking radioactive plumes and participating in radioisotope mapping surveys. It is also ready to obtain the required data to build the radiological map of Catalonia.

Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Radiation Química Physics, atomic, molecular & chemical Odontología Nutrição Nuclear science & technology Medicina veterinaria Medicina ii Medicina i Materiais Interdisciplinar Geografía Geociências Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, physical Biotecnología Biodiversidade Astronomia / física Antropologia / arqueologia

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0969806X

Author's mail: ramon.casanovas@urv.cat m.salvado@urv.cat

Author identifier: 0000-0002-3954-158X 0000-0002-9399-6649

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.sciencedirect.com/science/article/pii/S0969806X19309570

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Radiation Physics And Chemistry. 168 (108600):

APA: Prieto E; Jabaloyas E; Casanovas R; Rovira C; Salvadó M (2020). Set up of a gamma spectrometry mobile unit equipped with LaBr3(Ce) detectors for radioactivity monitoring. Radiation Physics And Chemistry, 168(108600), -. DOI: 10.1016/j.radphyschem.2019.108600

Article's DOI: 10.1016/j.radphyschem.2019.108600

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications