1. Laboratory Plasma et Conversion d'Energie (LAPLACE); CNRS and Université de Toulouse; 118 route de Narbonne 31062 Toulouse France
2. Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais Lisboa 1049-001 Portugal
3. Department of Physics and Astronomy; Drake University; Des Moines Iowa 50311 USA
4. University of Liverpool; Oliver Lodge Lab; Liverpool L69 3BX United Kingdom
5. INSERM; UMR 1037 CRCT; Toulouse F-31037 France
6. Université Toulouse III-Paul Sabatier; UMR 1037 CRCT; Toulouse F-31037 France
7. Curtin Institute for Computation and Department of Physics; Astronomy and Medical Radiation Sciences; Curtin University; Perth Western Australia 6102 Australia
8. Department of Chemistry; University of British Columbia; Vancouver BC V6T 1Z1 Canada
9. School of Chemical and Physical Sciences; Flinders University; GPO Box 2100 Adelaide South Australia 5001 Australia
10. Institute of Mathematical Sciences; University of Malaya; Kuala Lumpur 50603 Malaysia
11. Power Systems and High Voltage Laboratories; ETH Zurich; Physikstr. 3, 8092 Zurich Switzerland
12. DA-IICT; Gandhinagar 382007 India
13. Academy of Athens; 28 Panepistimiou Street Athens 10679 Greece
14. Institute for Plasma and Atomic Physics; Ruhr-University Bochum; 44780 Germany
15. State Research Center of Russian Federation Troitsk Institute for Innovation and Fusion Research; Pushkovykh str., prop. 12, 142190 Troitsk Moscow Russia
16. Department of Physics; Indian Institute of Technology; Roorkee 247 667 India
17. Institute of Space and Astronautical Science; Sagamihara 252-5210 Japan
18. Plasma and Positron Research Laboratory; Research School of Physics and Engineering; Australian National University; Canberra 0200 Australia
19. Kinema Research and Software; LLC; PO Box 1147, Monument Colorado 80132 USA
20. Laboratoire de Physique des Gaz et des Plasmas; CNRS & Université Paris-Sud; Orsay F-91405 France
21. Department of Physics and Astronomy; York University; Toronto Ontario M3J 1P3 Canada
22. Department of Physics and Astronomy; University College London; London WC1E6BT United Kingdom
23. Instituto de Ciencias Físicas; Universidad Nacional Autónoma de México; Cuernavaca, Mor 62251 Mexico
24. Department of Applied Physics; Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
25. Department of Science; Chatham University; Pittsburgh Pennsylvania 15232 USA
26. Theoretical Division; Los Alamos National Laboratory; Los Alamos, New Mexico 87545 United States
27. ABB Corporate Research; Segelhofstrasse 1 K Baden-Dättwil 5405 Switzerland