Towards experiments at the new ELI-NP facility

Abstract

Abstract. The Extreme Light Infrastructure (ELI) Pan-European initiative represents a major step forward in quest for extreme electromagnetic fields. The Extreme Light Infrastructure -Nuclear Physics (ELI-NP) laboratory is one of the three pillars of the ELI project, that aims to use such extreme electromagnetic fields for nuclear physics and quantum electrodynamics research. At ELI-NP two ten petawatt high-power laser systems together with a very brilliant narrow-width γ beam are the main research tools. Here the current status of the project and the experimental program related to nuclear research, which is under preparation at ELI-NP, are presented. The ELI-NP projectELI-NP [1] is one of the three laboratories under construction, related the ELI project [2], the other two being laser-driven secondary beams in Prague, the Czech Republic [3] and attosecond pulsed lasers in Szeged, Hungary [4]. In 2012 the 293-million-euro ELI-NP project was approved by the European Commission. ELI-NP will host two ultra high-power 10 PW lasers and a gamma beam system (GBS) which will deliver laser and γ-ray beams with parameters beyond those available at the present-stateof-the-art machines. The main laboratory building covers an area of more than 12000 m 2 . Its lay-out is displayed in Fig 1. The high-power laser system (HPLS) and the gamma beam system (GBS) are placed in the laboratory building, adjacent to the corresponding experimental areas. They will be mounted on an anti-vibration slab, damping vibrations to frequencies ≤ 10 Hz with amplitudes down to ±1 μm.The HPLS will have six output lines -two at 10 PW with a frequency of ≥ 1/60 Hz, two at 1 PW with a frequency of ≥ 1 Hz and two at 100 TW with a frequency of ≥ 10 Hz. Each output will have its optical pulse compressor. The duration of the pulses from each of the six outputs of the HPLS shall be tunable from the best compression level to at least 5 ps pulse duration, with both positive and negative chirp. The HPLS outputs will be synchronized with accuracy below 200 fs [5]. The laser system will deliver pulses synchronously with the GBS electron and γ bunches.The GBS is designed and constructed by the European consortium EuroGammaS, led by the Italian INFN LNF, including research and industrial partners from eight European countries. It will produce highly polarized (> 95%) tunable γ beams of spectral density of 10 4 photons/s/eV in the range from 200 keV to 19.5 MeV with a bandwidth of > 0.3% [6,7]. The γ beams will be produced through laser Compton backscattering (LCB) off an accelerated electron beam delivered by a linear a

Radiation reaction in quantum vacuum

“…I chose the parameters of the Extreme Light Infrastructure -Nuclear Physics (ELI-NP) for calculations [19,20]. The characteristic point of Eq.…”

Shielding assessment of high field (QED) experiments at the ELI-NP 10 PW laser system

“…The new research infrastructure Extreme Light Infrastructure-Nuclear Physics (ELI-NP) which is being built at Măgurele, Romania, as one of the three pillars of the ELI European project will host experiments with a high performance machine, a 2×10 PW (1 PW=1 petawatt=one quadrillion watts) laser system, aiming to achieve record intensity values of the focused beam (10 23 -10 24 W cm −2 ), about 250 J per shot for each of the two amplification chains, and repetition rates as high as one pulse per minute [1,2]. It is therefore expected that the levels of ionizing radiation which will affect activities here will be higher than those which are presently recorded worldwide.…”