Colliding laser-produced plasmas: a new tool for nuclear astrophysics studies

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

doi:10.1080/10420151003729847

Cited by 27 publications

(17 citation statements)

References 2 publications

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“…In our laser generated plasmas, in fact, the classical Debye screening factor (it depends somehow by the temperature over density ratio) becomes comparable with the one of the solar core. Preliminary calculations about the total number of fusion reactions are reported in Mascali et al, 2010, assuming a parametrization of the initial plasma temperature and density and following the evolution of such parameters by means of the 'one fluid' hydrodynamical model of Anisimov et al, (1993). In this work we present an updated version of the numerical code, which easily evaluates the 3D fusion rate, and finally the number of expected fusions per laser shot, including the electron screening.…”

Section: Introductionmentioning

confidence: 99%

Calculation of fusion rates at extremely low energies in laser plasmas

et al. 2010

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At temperatures and densities that are typical of plasmas produced by lasers pulses interacting with solid targets, at power intensities I > 10 12 W/cm 2 , the classical Debye screening factor in nuclear reactions becomes comparable with the one of the solar core. Preliminary calculations about the total number of fusion reactions have been performed following an hydrodynamical approach for the description of the plasma dynamics. This approach is propaedeutic for future measurements of D-D fusion reaction rates.

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Section: Introductionmentioning

confidence: 99%

Calculation of fusion rates at extremely low energies in laser plasmas

et al. 2010

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“…Laser produced colliding plasma has also been used to model and understand various nuclear astrophysical processes. 34,35 The pre-dominance of interpenetration of plumes at high laser intensity and the larger inter seed distance is established by Popovics et al 30 on the basis of their studies of kinetic to thermal energy transfer in colliding plasma. The higher ionic temperature and charge particle acceleration using Thomson scattering in conjunction with proton radiography has been reported with high density colliding plumes.…”

Section: Introductionmentioning

confidence: 98%

Dynamics of laser ablated colliding plumes

Gupta¹,

Pandey²,

Thareja

2013

Physics of Plasmas

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We report the dynamics of single and two collinearly colliding laser ablated plumes of ZnO studied using fast imaging and the spectroscopic measurements. Two dimensional imaging of expanding plume and temporal evolution of various species in interacting zones of plumes are used to calculate plume front velocity, electron temperature, and density of plasma. The two expanding plumes interact with each other at early stage of expansion ($20 ns) resulting in an interaction zone that propagates further leading to the formation of stagnation layer at later times (>150 ns) at the lateral collision front of two plumes. Colliding plumes have larger concentration of higher ionic species, higher temperature, and increased electron density in the stagnation region. A one-to-one correlation between the imaging and optical emission spectroscopic observations in interaction zone of the colliding plumes is reported. V C 2013 American Institute of Physics.

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“…It is obtained by using and revising the numerical model proposed by Anisimov et al in [1] that solves the gas dynamical equations under the hypothesis that the plasma evolves adiabatically. The code was implemented in Matlab with the four Runge-Kutta method [2].…”

Section: Introductionmentioning

confidence: 99%

Investigations of laser plasmas dynamics by means of real and virtual Langmuir Probes

Gambino

Tudisco

Anzalone

et al. 2011

2011 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and Their Applications

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In this paper we propose a novel technique for LPP-Laser Produced Plasmas investigation, combining high time resolved measurements using compact Langmuir Probes with the output of a theoretical model called HYBLAS developed on purpose, which is able to simulate the charged particles collected by a so-called virtual probe. It will be shown that with an appropriate experimental set-up and with the use of a Matlab software able to accurately analyze the experimental I-V curves, laser plasmas can be investigated properly even if the probe is placed very close to the target surface. This permits not only to study the plume expansion with a high temporal resolution, but also to estimate correctly the self-generated coulomb electric field inside the plume and to detect the inner structure of the the first upcoming expanding plasma. HYBLAS is able to predict and describe the plume expansion at relatively low power densities and is a powerful method to compare directly the experimental current signals with the numerical results if the initial conditions are setted properly. A direct comparison of the theoretical data with the experimental ones realized on different metal targets shows that our method is able to predict properly the overall plasma expansion in the nanosecond laser pulse duration regime. The virtual probe method was moreover tested by comparing the numerical results with another numerical code called MULTI, which simulate the expansion by combining the hydrodynamics equations to a multigroup method in order to include the radiation transport.

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Colliding laser-produced plasmas: a new tool for nuclear astrophysics studies

Cited by 27 publications

References 2 publications

Calculation of fusion rates at extremely low energies in laser plasmas

Calculation of fusion rates at extremely low energies in laser plasmas

Dynamics of laser ablated colliding plumes

Investigations of laser plasmas dynamics by means of real and virtual Langmuir Probes

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