1. National Institute of Space Research, Av. dos Astronautas, 1758, Jardim da Granja, São José dos Campos 12227-010, São Paulo, Brazil
2. Plasmas and Processes Laboratory, Technological Institute of Aeronautics, Praça Marechal Eduardo Gomes, 50, Vila das Acacias, São José dos Campos 12228-900, São Paulo, Brazil
3. Nuclear and Energy Research Institute, Av. Prof. Lineu Prestes, 2242, Butantã, São Paulo 05508-000, São Paulo, Brazil
4. Federal Institute of São Paulo, Rod. Pres. Dutra, km 145 - s/n - Jardim Diamante, São José dos Campos 12223-201, São Paulo, Brazil