Relativistic current dynamics investigations by proton probing

M. Borghesi, K. Quinn, P. A. Wilson, C. A. Cecchetti, B. Ramakrishna, L. Romagnani, G. Sarri, L. Lancia, J. Fuchs, A. Pipahl, T. Toncian, O. Willi, D. C. Carroll, P. Gallegos, M. N. Quinn, X. H. Yuan, P. McKenna, R. J. Clarke, R. G. Evans, D. NeelyM. Notley, A. Macchi, T. V. Lyseikina, W. Nazarov

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Abstract

The proton probing technique has been used to investigate the incidence of a mid-l019 W cm-2 pulse with metalhc wire and laminar foam targets. Electric fields ∼ l010 V-m-1 are measured on the surface of the 125 μm-diameter wire in the wake of the laser interaction as it charges and discharges within a 20 ps temporal window, whilst the employment of a novel experimental technique permits the observation of the propagation of a charging front at ∼ c away from the point of interaction. In the foam shots, meanwhile, the behaviour of the hot electrons generated by the interaction pulse is probed inside the target. Evidence of electric inhibition effects and filamentation is found.

Original languageEnglish
Title of host publicationLaser-Driven Relativistic Plasmas Applied to Science, Industry and Medicine - The 2nd International Symposium
Place of PublicationNew York, NY
Pages319-330
Number of pages12
Volume1153
DOIs
Publication statusPublished - 25 Nov 2009
Event2nd International Symposium on Laser-Driven Relativistic Plasmas Applied to Science, Industry and Medicine - Kyoto, Japan
Duration: 19 Jan 200923 Jan 2009

Conference

Conference2nd International Symposium on Laser-Driven Relativistic Plasmas Applied to Science, Industry and Medicine
CountryJapan
CityKyoto
Period19/01/0923/01/09

Keywords

  • electric inhibition
  • electron escape
  • electron transport
  • filamentation
  • high-intensity laser-matter interactions
  • instability
  • ion
  • proton acceleration
  • return current
  • short-pulse

Cite this

Borghesi, M., Quinn, K., Wilson, P. A., Cecchetti, C. A., Ramakrishna, B., Romagnani, L., Sarri, G., Lancia, L., Fuchs, J., Pipahl, A., Toncian, T., Willi, O., Carroll, D. C., Gallegos, P., Quinn, M. N., Yuan, X. H., McKenna, P., Clarke, R. J., Evans, R. G., ... Nazarov, W. (2009). Relativistic current dynamics investigations by proton probing. In Laser-Driven Relativistic Plasmas Applied to Science, Industry and Medicine - The 2nd International Symposium (Vol. 1153, pp. 319-330). https://doi.org/10.1063/1.3204541