The plasma-based acceleration is an encouraging technique to overcome the limits of the accelerating gradient in the conventional RF acceleration. A plasma accelerator is able to provide accelerating fields up to hundreds of GeV/m, paving the way to accelerate particles to several MeV over a short distance (below the millimetre range). Here the characteristics of preliminary electron beams obtained with the self-injection mechanism produced with the FLAME high-power laser at the SPARC LAB test facility are shown. In detail, with an energy laser on focus of 1.5 J and a pulse temporal length (FWHM) of 40 f s, we obtained an electron plasma density due to laser ionization of about 6 × 1018 cm−3 , electron energy up to 350 MeV and beam charge in the range (50 − 100) pC.
Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB / Costa, G., Anania MP and, B., F and, C., E and, C., A and, C., A and, F., M and, F., F and, M., A and, M., F and, O.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 909:(2018), pp. 118-122. (EAAC 2017 Elba Island Italy ) [10.1016/j.nima.2018.02.008].
Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB
Costa G
;
2018
Abstract
The plasma-based acceleration is an encouraging technique to overcome the limits of the accelerating gradient in the conventional RF acceleration. A plasma accelerator is able to provide accelerating fields up to hundreds of GeV/m, paving the way to accelerate particles to several MeV over a short distance (below the millimetre range). Here the characteristics of preliminary electron beams obtained with the self-injection mechanism produced with the FLAME high-power laser at the SPARC LAB test facility are shown. In detail, with an energy laser on focus of 1.5 J and a pulse temporal length (FWHM) of 40 f s, we obtained an electron plasma density due to laser ionization of about 6 × 1018 cm−3 , electron energy up to 350 MeV and beam charge in the range (50 − 100) pC.| File | Dimensione | Formato | |
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