Environmental Low Energy Gamma Rays Measurements in Brazilian Tropics Region During 2016

作     者：Inaicio Malmonge Martin Anatoli Alexandrovitch Goussev Douglas Carlos Vilela Marcelo Pego Gomes Mauro Angelo Alves Alessandro de Abreu Matheus Carlos Silva Rodrigo Rezende Femandez de Carvalho 

作者机构：Physics Department Technological Institute of Aeronautics-ITA Sao Jose dos Campos SP 12228-900 Brazil Space Research Institute of the Russian Academy of Sciences IKI Moscow 117997 Russia 

出 版 物：《Journal of Environmental Science and Engineering(A)》 (环境科学与工程（A）)

年 卷 期：2016年第5卷第11期

页      面：559-565页

学科分类：082704[工学-辐射防护及环境保护] 07[理学] 070601[理学-气象学] 08[工学] 0706[理学-大气科学] 0827[工学-核科学与技术] 

主　　题：Gamma radiation atmospheric phenomena electric discharges radon gas. 

摘      要：Low energy gamma radiation （0.2-10.0） MeV near the Earth＇s surface has several origins. Primary and secondary cosmic radiations with interactions of very high energy protons （〉 1 GeV） in terrestrial atmosphere are the main sources. The second most important source near the surface of the Earth and in the tropical and equatorial regions is the radon gas （Rn-222） that decays in alpha particles and gamma rays in this energy range. Also the telluric radionuclides 238U, 235U, 40K and 232Th in decays produce gamma radiation with different intensities at different locations on the surface of the Earth. Other sources less present are electrical discharges （lightning strikes） and man-made radioactive sources for medical, dental and industrial applications. In this work, it is shown that measurements of these components during all year 2016 are carried out at the ITA （Technological Institute of Aeronautics） campus in Sao Jose dos Campos, SP, Brazil and their possible correlations with atmospheric phenomena.