1. Department of Physics of Federal, University of Paraná, 81531-990 Curitiba, Paraná, Brazil
2. Institute of Physics, University of São Paulo, 05315-970 São Paulo, São Paulo, Brazil
3. Federal Institute of Education, Science and Technology of São Paulo, 07115-000 Guarulhos, São Paulo, Brazil
4. Department of Physics and Institute for Fusion Studies, The University of Texas at Austin, 78712 Austin, Texas, USA