@Article{SabaFCCNSCPLMHR:2019:HiViOb,
               author = "Saba, Marcelo Magalh{\~a}es Fares and Ferro, M. A. S. and 
                         Cuadros, Edith Tueros and Cust{\'o}dio, D. M. and Nag, Amitabh 
                         and Schumann, Carina and Cooray, V. and Paiva, Amanda Rom{\~a}o 
                         de and Lauria, Paola Beatriz and Medeiros, D. and Hettiarachchi, 
                         Pasan and Rassoul, H. K.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Instituto de Aeron{\'a}utica 
                         e Espa{\c{c}}o (IAE)} and {Florida Institute of Technology} and 
                         {University of Witwatersrand} and {Uppsala University} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {Uppsala 
                         University} and {Florida Institute of Technology}",
                title = "High-speed video observation of a dart leader producing x-rays",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2019",
               volume = "1",
                pages = "2019JA027247",
             keywords = "X-rays, lightning, lightning attachment, dart leader, high-speed 
                         video.",
             abstract = "This work presents the first simultaneous x-ray measurement and 
                         high-speed video observation of the propagation of a lightning 
                         leader producing x-rays. As a result, the 3D leader distance from 
                         the x-ray measurement and, for the first time, the conditions of 
                         the preexisting channel during the leader propagation were 
                         observed. Although four leaders in this seven-stroke flash 
                         followed the same path to ground, x-rays were only observed during 
                         the leader before the return stroke with the highest peak current. 
                         The fact that the other three leaders following the same path to 
                         ground did not produce detectable x-rays confirms the hypothesis 
                         that leader line charge density is an important factor that 
                         determines x-ray production. The fact that x-rays was recorded 
                         only when the leader tip was at a certain portion of the lightning 
                         channel confirms that the orientation of the leader plays an 
                         important role in the detection of x-rays.",
                  doi = "10.1029/2019JA027247",
                  url = "http://dx.doi.org/10.1029/2019JA027247",
                 issn = "2169-9402",
                label = "lattes: 9951883793402408 9 SabaFCCNSCPLMHR:2019:HiViOb",
             language = "en",
           targetfile = "2019 A - JGR Space_Physics Saba_et_al High-Speed Video Observation 
                         of a Dart Leader Producing X-rays.pdf",
                  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JA027247",
        urlaccessdate = "27 abr. 2024"
}