First measurements of betatron radiation at FLAME laser facility

Curcio, A.; Anania, M. P.; Bisesto, F.; Chiadroni, E.; Cianchi, A.; Ferrario, M.; Filippi, F.; Giulietti, Danilo; Marocchino, A.; Mira, F.; Petrarca, M.; Shpakov, V.; Zigler, A.

doi:10.1016/j.nimb.2017.03.106

Cited by 10 publications

(11 citation statements)

References 28 publications

(16 reference statements)

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“…3), performed with the ALaDyn code [14,15,16] for a driver laser pulse and a background electron plasma density with about the same characteristics of the experimental ones. The code predicted polyenergetic electron beams, with energies and energy spreads both consistent with the measurements [17]. …”

Section: Experimental Parameters and Simulationssupporting

confidence: 72%

“…8. It was then converted in PSL (photostimulated luminescence) via the calibration presented in the work [17,20,21], leading us to an evaluation of the charge typically in the range (50 − 100) pC. The charge data confirmed the electron beam transversal information found with the LANEX screen.…”

Section: Electron Bunch Dimensions Charge and Energymentioning

confidence: 60%

“…The dephasing of the interference fringes, due to the transit through the plasma, was analysed with a specific Matlab GUI program, which reconstructs the phase map obtained by the shift of the fringes recorded [18]. The electron plasma density obtained was n e ≈ (6 − 8) × 10 18 cm −3 , and the maximum acceleration length, measured looking at the extension of the plasma in the interferometric images of the laser propagated through the plasma, was in the range L acc = (1 − 2) mm, according to the diameter of the gas-nozzle and of the plasma density used shot by shot [17].…”

Section: Plasma Density and Acceleration Lengthmentioning

confidence: 99%

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Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB

Costa

Anania

Bisesto

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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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 × 10 18 cm −3 , electron energy up to 350 MeV and beam charge in the range (50 − 100) pC.

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Section: Experimental Parameters and Simulationssupporting

confidence: 72%

Section: Electron Bunch Dimensions Charge and Energymentioning

confidence: 60%

Section: Plasma Density and Acceleration Lengthmentioning

confidence: 99%

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Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB

Costa

Anania

Bisesto

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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“…Betatron radiation with a certain degree of coherence is emitted within a narrow cone in a process analogous to wiggler emission in storage ring light sources. The first measurements of betatron radiation emitted in laser-plasma acceleration experiments at the LNF were performed at the FLAME (Frascati Laser for Acceleration and Multidisciplinary Experiments) laser facility [6,7]. The measured betatron radiation spectrum was in the X-ray region from 2 keV to 25 keV.…”

Section: Introductionmentioning

confidence: 99%

Plasma-Generated X-ray Pulses: Betatron Radiation Opportunities at EuPRAXIA@SPARC_LAB

et al. 2022

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EuPRAXIA is a leading European project aimed at the development of a dedicated, ground-breaking, ultra-compact accelerator research infrastructure based on novel plasma acceleration concepts and laser technology and on the development of their users’ communities. Within this framework, the Laboratori Nazionali di Frascati (LNF, INFN) will be equipped with a unique combination of an X-band RF LINAC generating high-brightness GeV-range electron beams, a 0.5 PW class laser system and the first fifth-generation free electron laser (FEL) source driven by a plasma-based accelerator, the EuPRAXIA@SPARC_LAB facility. Wiggler-like radiation emitted by electrons accelerated in plasma wakefields gives rise to brilliant, ultra-short X-ray pulses, called betatron radiation. Extensive studies have been performed at the FLAME laser facility at LNF, INFN, where betatron radiation was measured and characterized. The purpose of this paper is to describe the betatron spectrum emitted by particle wakefield acceleration at EuPRAXIA@SPARC_LAB and provide an overview of the foreseen applications of this specific source, thus helping to establish a future user community interested in (possibly coupled) FEL and betatron radiation experiments. In order to provide a quantitative estimate of the expected betatron spectrum and therefore to present suitable applications, we performed simple simulations to determine the spectrum of the betatron radiation emitted at EuPRAXIA@SPARC_LAB. With reference to experiments performed exploiting similar betatron sources, we highlight the opportunities offered by its brilliant femtosecond pulses for ultra-fast X-ray spectroscopy and imaging measurements, but also as an ancillary tool for designing and testing FEL instrumentation and experiments.

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“…The possibility to reach power densities larger than 10 18 W/cm 2 at femtosecond level, thanks to the important achievements in laser technology, has opened the way for future compact accelerators [1,2]. Even though compact accelerating systems have been already demonstrated [3,4,5,6,7,8,9] and new x-ray radiation sources has been developed [10,11,12], the produced charged particle beams are still affected by shotby-shot instabilities. Moreover, the physical mechanism for ion acceleration, exploiting the interaction of high power lasers with solid matter, is not clear yet.…”

Section: Introductionmentioning

confidence: 99%

Recent studies on single-shot diagnostics for plasma accelerators at SPARC_LAB

Bisesto

Anania

Botton

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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Plasma wakefield acceleration is the most promising acceleration technique for compact and cheap accelerators, thanks to the high accelerating gradients achievable. Nevertheless, this approach still suffers of shot-to-shot instabilities, mostly related to experimental parameters fluctuations. Therefore, the use of single shot diagnostics is needed to properly understand the acceleration mechanism. In this work, we present two diagnostics to probe electron beams from laser-plasma interactions, one relying on Electro Optical Sampling (EOS) for laser-solid matter interactions, the other one based on Optical Transition Radiation (OTR) for single shot measurements of the transverse emittance of plasma accelerated electron beams, both developed at the SPARC LAB Test Facility.

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First measurements of betatron radiation at FLAME laser facility

Cited by 10 publications

References 28 publications

Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB

Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB

Plasma-Generated X-ray Pulses: Betatron Radiation Opportunities at EuPRAXIA@SPARC_LAB

Recent studies on single-shot diagnostics for plasma accelerators at SPARC_LAB

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