Contribution of Electromagnetic Perturbation to the Transient Response of an Electronic Circuit Exposed to a High Multi-MeV X-Ray Flux

Ribière, M.; Demarquay, S.; Maulois, M.; Maisonny, R.; DaAlmeida, T.; Toury, M.; Crabos, Bernard; Gonzalez, C.; Garrigues, A.; Delbos, C.; Azais, B.

doi:10.1109/tns.2015.2417354

Cited by 17 publications

(4 citation statements)

References 20 publications

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“…Three body and radiative recombination are important processes governing plasma kinetics at atmospheric pressures and beyond. These processes are involved, for example, in atmospheric air plasmas produced by static [1] or pulsed highvoltage [2,3] for many applications: aircraft vulnerability [4], gas switches in high pulsed power generator [5,6] and so on. Furthermore, laser-induced plasmas in air have shown to be a convenient and versatile tool for sample analysis [7,8].…”

Section: Introductionmentioning

confidence: 99%

Influence of plasma density on radiative recombination cross sections of oxygen ions

Ribière¹

2022

J. Phys. B: At. Mol. Opt. Phys.

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Radiative recombination cross sections of oxygen ions from O+ to O6+ are calculated by an atomic model assuming central field and Hartree-Fock-Slater approximation for exchange potential. The recombining ions are considered on their ground states, to form recombined ions on their ground states as well as on several subshells up to 4d. The effect of plasma density on the cross sections is taken into account by varying the Wigner-Seitz cell representing the atomic volume containing bound and free electrons. It is shown that the increase of plasma density significantly enhances the cross sections involving excited states of the recombined ions at atmospheric pressures and beyond. These cross sections may be used in collisional-radiative models for fully ionized plasma simulations in the frame work of, for example, switches in Marx generator and laser-induced plasmas in air.

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Section: Introductionmentioning

confidence: 99%

Influence of plasma density on radiative recombination cross sections of oxygen ions

Ribière¹

2022

J. Phys. B: At. Mol. Opt. Phys.

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“…In this section, the results of Electre-Phoebus 3D Monte Carlo transport simulations are presented [20][21]. This calculation incorporates all the microscopic interactions occurring as the primary e-beam interacts with the solid anode target: collisional ionization and bremsstrahlung, which are the sources of electron energy loss, and also photoelectric and Compton ionization induced by the photons (resulting from bremsstrahlung and, in a lesser proportion fluorescence and electrons-positron creation) which are the source of electron creation.…”

Section: Monte Carlo Calculation Of Electron and Photon Transport In mentioning

confidence: 99%

Investigating the performances of a 1 MV high pulsed power linear transformer driver: from beam dynamics to x radiation

Maisonny

Ribière

Toury

et al. 2016

Phys. Rev. Accel. Beams

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International audienceThe performance of a 1 MV pulsed high-power linear transformer driver accelerator were extensively investigated based on a numerical approach which utilizes both electromagnetic and Monte Carlo simulations. Particle-in-cell calculations were employed to examine the beam dynamics throughout the magnetically insulated transmission line which governs the coupling between the generator and the electron diode. Based on the information provided by the study of the beam dynamics, and using Monte Carlo methods, the main properties of the resulting x radiation were predicted. Good agreement was found between these simulations and experimental results. This work provides a detailed understanding of mechanisms affecting the performances of this type of high current, high-voltage pulsed accelerator, which are very promising for a growing number of applications

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“…Nevertheless, in the perspective of collisional radiative modeling, the cross sections of configuration average states are more convenient, because the number of energy levels and hence the computation time is reduced [37,38] as compared if terms splitting are taken into account. Furthermore, the effect of plasma density on these cross sections, although extensively studied in the framework of studies concerning equations of state in the high energy and high density regime [39][40][41][42], it is not evaluated in a systematic way for plasmas such as, for example, ones generated in switches [43,44].…”

Section: Introductionmentioning

confidence: 99%

Influence of plasma density on the cross sections of radiative recombination to configuration-averaged excited nitrogen and oxygen atoms and ions

Ribière¹

2022

J. Phys. B: At. Mol. Opt. Phys.

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Radiative recombination cross sections of all the charge states of nitrogen and oxygen ions are calculated in the central field and Hartree-Fock-Slater approximations. The recombining ions are considered on their ground states, to form recombined ions on different configuration-averaged excited states. The ion potential energies are calculated assuming electro-neutrality in a Wigner-Seitz cell containing bound and free electrons, and the effect of plasma density on the cross sections is investigated by varying the cell radius. When the plasma density increases up to 1020 cm-3, the bound and free wave functions are distorted which significantly impact the cross sections. These deviations from the free atom case are all the more significant as the ion charge state of the recombining ion is low and as the excitation energy of the recombined ion is high. Also, calculations of the radiative recombination rates allow for quantifying the impact of plasma density at different temperatures. It is shown, for temperatures greater than 1 (Ry), that the rates at low and high plasma densities are closed. Nevertheless, for temperatures lighter than 1 (Ry) the influence of plasma density on the rates is significant. In addition, transition probabilities between the bound levels of all the charge states of N and O are calculated, and the influence of plasma density on these probabilities is analyzed. These cross sections and rates may be used as entrance parameters in collisional-radiative models for fully ionized plasma simulations in the framework of studies concerning for example, switches in Marx generator and laser-induced plasmas in air.

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Contribution of Electromagnetic Perturbation to the Transient Response of an Electronic Circuit Exposed to a High Multi-MeV X-Ray Flux

Cited by 17 publications

References 20 publications

Influence of plasma density on radiative recombination cross sections of oxygen ions

Influence of plasma density on radiative recombination cross sections of oxygen ions

Investigating the performances of a 1 MV high pulsed power linear transformer driver: from beam dynamics to x radiation

Influence of plasma density on the cross sections of radiative recombination to configuration-averaged excited nitrogen and oxygen atoms and ions

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