Electromagnetic pulses produced by expanding laser-produced Au plasma

Massimo De Marco*, Jakub Cikhardt, Josef Krása, Andriy Velyhan, Miroslav Pfeifer, Eduard Krouský, Daniel Klír, Karel Řezáč, Jiři Limpouch, Daniele Margarone, Jiři Ullschmied

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Citations (Scopus)
3 Downloads (Pure)

Abstract

The interaction of an intense laser pulse with a solid target produces large number of fast free electrons. This emission gives rise to two distinct sources of the electromagnetic pulse (EMP): the pulsed return current through the holder of the target and the outflow of electrons into the vacuum. A relation between the characteristics of laser-produced plasma, the target return current and the EMP emission are presented in the case of a massive Au target irradiated with the intensity of up to 3 × 1016 W/cm2. The emission of the EMP was recorded using a 12 cm diameter Moebius loop antennas, and the target return current was measured using a new type of inductive target probe (T-probe). The simultaneous use of the inductive target probe and the Moebius loop antenna represents a new useful way of diagnosing the laser-matter interaction, which was employed to distinguish between laser-generated ion sources driven by low and high contrast laser pulses.

Original languageEnglish
Pages (from-to)239-243
Number of pages5
JournalNUKLEONIKA
Volume60
Issue number2
DOIs
Publication statusPublished - 22 Jun 2015
Externally publishedYes

Keywords

  • Electromagnetic pulse (EMP)
  • Inductive target probe
  • Laser-produced plasma
  • Moebius loop antenna
  • Return target current

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Instrumentation
  • Safety, Risk, Reliability and Quality
  • Condensed Matter Physics
  • Waste Management and Disposal

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