Basic features of electromagnetic pulse generated in a laser-target chamber at 3-TW laser facility PALS

0439952 - FZÚ 2015 RIV US eng C - Conference Paper (international conference)
De Marco, Massimo - Pfeifer, Miroslav - Krouský, Eduard - Krása, Josef - Cikhardt, J. - Klír, D. - Nassisi, V.
Basic features of electromagnetic pulse generated in a laser-target chamber at 3-TW laser facility PALS.
Journal of Physics: Conference Series. Vol. 508. Bristol: IOP Publishing, 2014, "012007-1"-"012007-4". ISSN 1742-6588.
[Plasma Physics by Laser and Applications 2013 Conference (PPLA2013). Lecce (IT), 02.10.2013-04.10.2013]
R&D Projects: GA MŠMT EE2.3.20.0279; GA ČR GAP205/12/0454
Grant - others:LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279
Institutional support: RVO:68378271
Keywords : laser-produced plasma * electromagnetic pulse generation
Subject RIV: BL - Plasma and Gas Discharge Physics

We describe the radiofrequency emission taking place when 300 ps laser pulses irradiate various solid targets with an intensity of 10(16) W/cm(2). The emission of intense electromagnetic pulses was observed outside the laser target chamber by two loop antennas up to 1 GHz. Electromagnetic pulses can be 800 MHz transients, which decay from a peak electromagnetic field of E-0 congruent to 7 kV/m and H-0 congruent to 15 A/m. The occurrence of these electromagnetic pulses is associated with generation of hard x-rays with photon energies extending beyond 1 MeV. This contribution reports the first observation of this effect at the PALS facility.
Permanent Link: http://hdl.handle.net/11104/0243125