Calculation of fusion rates at extremely low energies in laser plasmas

Gambino, N.; Tudisco, S.; Anzalone, A.; Bonanno, A.; Gammino, S.; Musumeci, F.

doi:10.1017/s1743921311006557

Cited by 4 publications

(5 citation statements)

References 5 publications

(6 reference statements)

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“…This idea is motivated by the unique capability of the NWs to absorb light at very high efficiency. Therefore the use of such NWs could allow obtaining plasma conditions different from those achievable from ordinary bulk targets, and investigate nuclear reactions and fundamental interactions under those conditions [5]. These expectations are confirmed from recent experiments, for laser pulses in the fs to ns time scale and at various intensities [6][7][8][9].…”

Section: Introductionsupporting

confidence: 52%

“…Thermalization of the whole plasma is another crucial aspect. These requirements induced to argue that ns-laser generated plasmas are suitable environments for nuclear astrophysics studies, as already mentioned in [4,5]. The aim of this experiment is to study the behaviour of targets based on metallic nanowires (NWs), under ns-laser irradiation.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured targets irradiation by ns-laser for nuclear astrophysics applications: first results

et al. 2017

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The studies discussed in this work are related to a scientific program that aims to reproduce astrophysical-plasmas in laboratory in order to better understand the nuclear processes involved in the stellar burning. An experimental campaign aiming to investigate the effects of innovative nanostructured targets based on Ni, Fe and Co nanowires on laser energy absorption in the ns time domain has been carried out at the LENS (Laser Energy for Nuclear Science) laboratory of INFN-LNS, Catania. Nanowires structures are tuned to increase the light absorption in the visible and infrared range due possibly to plasmonic excitation driven by the incoming photons. Different diagnostics techniques permit to monitor the plasma and to determine its reproducibility. Targets were then irradiated by Nd:YAG 2J, 6 ns infrared laser (λ = 1064 nm) at different pumping energies. Some preliminary results will be illustrated. K: Lasers; Nuclear instruments and methods for hot plasma diagnostics; Targets (spallation source targets, radioisotope production, neutrino and muon sources); X-ray detectors 1Corresponding author.

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Section: Introductionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Nanostructured targets irradiation by ns-laser for nuclear astrophysics applications: first results

et al. 2017

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“…ECR plasmas are density limited [7], in facts the electromagnetic waves cannot propagate above the so-called cut-off density: n cut-off = (ε o m e /e 2 )ω 2 . Electron Bernstein Waves (EBW) [8] are able to propagate in overdense plasmas, and thus they are an option to increase the density over the cut-off limit [7,9]. They are crucial for plasma ignition in nuclear fusion experiments, and represent a promising technique to improve the performances of existing plasma-based ion sources, which are critically dependent on the plasma density.…”

Section: Theory Of X-b Conversion Mechanismmentioning

confidence: 99%

“…We also designed a novel setup to study nuclear astrophysics by employing LPP [6]. By studying the evolution of single expanding plasma, we observed, other than the classical hydrodynamics expansion, some non linear processes driven by the formation of Double or Multi-layers.…”

Section: Introductionmentioning

confidence: 99%

Ion acceleration in non-equilibrium plasmas driven by fast drifting electron

Castro

Bartolo

Gambino

et al. 2013

Applied Surface Science

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We hereby present results on ion acceleration mechanisms in non equilibrium plasmas generated by microwaves or high intensity laser pulses. Experiments point out that in magnetized plasmas X-B conversion takes place for under resonance values of the magnetic field, i.e. an electromagnetic mode is converted into an electrostatic wave. The strong self-generated electric field, of the order of 10 7 V/m, causes a E × B drift which accelerates both ions and electrons, as it is evident by localized sputtering in the plasma chamber. These fields are similar (in magnitude) to the ones obtainable in laser generated plasmas at intensity of 10 12 W/cm 2. In this latter case, we observe that the acceleration mechanism is driven by electrons drifting much faster than plasma bulk, thus generating an extremely strong electric field ∼10 7 V/m. The two experiments confirm that ions acceleration at low energy is possible with table-top devices and following complementary techniques: i.e. by using microwave-driven (producing CW beams) plasmas, or non-equilibrium laser-driven plasmas (producing pulsed beams). Possible applications involve ion implantation, materials surface modifications, ion beam assisted lithography, etc.

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“…For the first time, at ELI-NP, it will enter into new domains of power and intensities: 10 PW and >10 23 W/cm 2 . The future availability of such intense beams at high repetition rates will give the unique opportunity to investigate nuclear reactions and fundamental interactions under the extreme plasma conditions [1] where it is expected that the physical properties of nuclear matter (structure, lifetimes, reaction mechanisms, etc.) could be drastically changed inside the plasma [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of ion production and acceleration mechanism in laser-produced plasma at moderate intensity for nuclear studies @ ELI-NP

et al. 2017

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High-power lasers allow to produce plasmas extremely appealing for the nuclear physics studies. An intense scientific program is under preparation for the experiments that will be conducted at the Extreme Light Infrastructure for Nuclear Physics (ELI-NP) in Magurele, Romania. Among the several planned activities, we aim to study low-energy fusion reactions and nuclear structure in a plasma environment. In this work, we discuss the results of some preliminary tests related to the experimental set-up, which is in phase of preparation, for the conduction of this scientific program at ELI-NP. Tests have been performed at ILIL laboratory in Pisa, where a Terawatt laser is installed. The goal of this experimental campaign was a systematic experimental investigation of ion production and acceleration mechanism that occur in laser-produced plasma at moderate intensity, I=1018–1022 W/cm2. We particularly focus the attention to identify the role of the target composition: surface contaminants versus volume contribution.

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Calculation of fusion rates at extremely low energies in laser plasmas

Cited by 4 publications

References 5 publications

Nanostructured targets irradiation by ns-laser for nuclear astrophysics applications: first results

Nanostructured targets irradiation by ns-laser for nuclear astrophysics applications: first results

Ion acceleration in non-equilibrium plasmas driven by fast drifting electron

Experimental investigation of ion production and acceleration mechanism in laser-produced plasma at moderate intensity for nuclear studies @ ELI-NP

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