1. Associated Laboratory of Plasma, National Institute for Space Research, S.J. Campos, SP 12227-010,
Brazil
2. Universidade Estadual de Ponta Grossa, Ponta Grossa, PR 84030900, Brazil
3. Université de Poitiers, 86073
Poitiers, France
4. HZDR, Rossendorf, 01328 Dresden,
Germany