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Possible Measures Electromagnetic Waves Generated by Diamagnetic Currents Produced in the Ionosphere by High-Frequency (HF)
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作者 Inficio M. Martini Alessandro J. de Abreu +4 位作者 Douglas C. Vilela marcelo p. gomes Mauro A. Alves Rodrigo R. F. Carvalho 《Journal of Environmental Science and Engineering(A)》 2016年第9期471-475,共5页
In a recent article the authors described a possible process of generating electromagnetic waves in the range of 1-12 Hz caused by diamagnetic currents originated by heat in ionosphere by high frequency waves (HF). ... In a recent article the authors described a possible process of generating electromagnetic waves in the range of 1-12 Hz caused by diamagnetic currents originated by heat in ionosphere by high frequency waves (HF). The origin of the HF waves that reach the ionosphere can be sent from the Earth's surface (HAARP- High Frequency Active Auroral Research Program) or even solar. Through a SpectranNF-5035 detector, developed by German Aaronia with high sensitivity (1 μV) in a range of 1-12 Hz and low sampling time (5 ms), it was possible to measure these waves. During the months of July and August of 2016, very dry and away from electrical discharges in the region of S~ Jos~ dos Campos, SP, Brazil were made several series of measurements to detect these waves. The positive results of these experimental observations as well as discussions and suggestions are presented in this paper. 展开更多
关键词 IONOSPHERE LIGHTNING ELF electromagnetic waves.
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Dynamics of Environmental Ionizing Radiation between May to September 2016 in the Region of S^o Jos~ dos Campos, SP, Brazil
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作者 Inacio M. Martin marcelo p. gomes +5 位作者 Mauro A. Alves Alessandro de Abreu Franklin A. Silva Rodrigo R. F.Carvalho Joao p. Correa Bogos N. Sismanoglu 《Journal of Environmental Science and Engineering(B)》 2016年第9期451-456,共6页
Measurements of gamma radiation (200 keV to 10 MeV) were performed between May 25 to September 30 2016 at ITA (Technological Institute of Aeronautics) in Sao Jose dos Campos, SP, Brazil. Detector and associated el... Measurements of gamma radiation (200 keV to 10 MeV) were performed between May 25 to September 30 2016 at ITA (Technological Institute of Aeronautics) in Sao Jose dos Campos, SP, Brazil. Detector and associated electronics were previously calibrated in the laboratory of ITA using radioactive sources Cs-137, Po-210 and Sr-90. These sources provide gamma-ray energies in 0.662 keV alpha particles of 5.4 MeV and 0.90 keV electrons, respectively. Detector is a scintillator Sodium Iodide activated with Thallium [NaI(Tl)] associated to a photomultiplier and electronic devices which gather, store, distribute and structure data so users can analyze them. During the period of May-September, the experimental set was installed in an open room on a tower 25 meters above the ground. Measurements indicated variations of ionizing radiation in function of dry weather, rain, cold fronts passes and presence of fog in the area; the sample time interval was minute by minute. This study discusses the analysis and the dynamics of how to measure meteorological parameters using an ionizing radiation system. 展开更多
关键词 Ionizing radiation environmental study gamma radiation measurements.
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