Heavy-ion interaction in a nonisothermal plasma with two-ion correlation effects

DaVanzo, Julie; Lontano, M.; Tomé, E.; Pf, Bortignon

doi:10.1103/physreve.52.919

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…(13), we have induced a cut-off wave number k max ¼ m e ðv 2 þ 2v 2 T Þ=ðZ 1 eÞ 2 to avoid the divergence of the integral caused by incorrect treatment of the short-range interactions between the projectile and electrons in the plasma. 23 Actually, the integral is fast convergent as increasing the values of the upper limit k max if the internuclear distance r keeps a limited value.…”

Section: Interaction Potentialmentioning

confidence: 99%

Influence of a strong laser field on Coulomb explosion and stopping power of energetic H3+ clusters in plasmas

et al. 2012

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The influence of a high-intensity laser field on the Coulomb explosion and stopping power for a swift H þ 3 cluster ion in a plasma target is studied by means of the molecular dynamic (MD) method based on the linearized Vlasov-Poisson theory. Excitations of the plasma are described by the classical plasma dielectric function. In the presence of the laser field, the general expressions for the induced potential in the target and the interaction force among the ions within the cluster are derived. Based on the numerical solution of the equations of motion for the constituent ions, the Coulomb explosion patterns and the cluster's stopping power are discussed for a range of laser parameters. Numerical results show that the laser field affects the correlation between the ions and contributes to weaken the wake effect and the stopping power as compared to the laser-free case. On the other hand, the stopping power ratio of H þ 3 cluster is higher than the situation of dicluster of H þ 2 due to the vicinage effect in the cluster.

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Section: Interaction Potentialmentioning

confidence: 99%

Influence of a strong laser field on Coulomb explosion and stopping power of energetic H3+ clusters in plasmas

et al. 2012

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“…where r = r(ρ, z) is the relative position vector, r = 2 is a cutoff wave number, which can avoid the divergence of the integral due to the wrong treatment of the short-range interactions between the projectile and the electrons in plasma. ρ η is the bound-electron charge density for a heavy ion in classical plasma [12,13] :…”

Section: Vicinage Effects In Coulomb Explosionmentioning

confidence: 99%

“…(1) where r = r(ρ, z) is the relative position vector, r = ρ 2 + z 2 , k max = m e (v 2 + 2v 2 T )/(Z 1 e) 2 is a cutoff wave number, which can avoid the divergence of the integral due to the wrong treatment of the short-range interactions between the projectile and the electrons in plasma. ρ η is the bound-electron charge density for a heavy ion in classical plasma [12,13] : ε(k, ω) shown in the interaction potential is the longitudinal dielectric function of the classical electron plasma, and can be expressed by:…”

Section: Vicinage Effects In Coulomb Explosionmentioning

confidence: 99%

Vicinage Effects for a Nitrogen Molecular Cluster in Plasmas

Wang

Peng

Xia

2014

Plasma Sci. Technol.

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The vicinage effects are studied for a fast nitrogen diatomic molecular cluster in a high-density plasma target. A variety of plasma parameters are discussed with regard to stopping power ratio, molecular axis deflection and Coulomb explosion. Emphasis is placed on the vicinage effects on Coulomb explosion and stopping power for a nitrogen cluster in plasmas. The results indicate that vicinage effects influence the correlation between ions in the cluster, and the Coulomb explosion will proceed faster with higher projectile speed, lower plasma density and higher plasma temperature. Comparing hydrogen and nitrogen molecular ions for Coulomb explosion and deflection angle under the same set of parameters, one can find that the nitrogen ion has faster Coulomb explosion and stronger deflection of molecular axis due to the contribution of charge. In the initial stage of the Coulomb explosion the stopping power ratio has a higher value due to enhanced vicinage effects while in the later stage the stopping power ratio approaches one, indicating that the vicinage effects disappear and the ions in the cluster simply behave as independent atomic ions in the plasma.

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Review of stopping power and Coulomb explosion for molecular ion in plasmas

Wang

et al. 2018

Matter and Radiation at Extremes

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Heavy-ion interaction in a nonisothermal plasma with two-ion correlation effects

Cited by 8 publications

References 12 publications

Influence of a strong laser field on Coulomb explosion and stopping power of energetic H3+ clusters in plasmas

Influence of a strong laser field on Coulomb explosion and stopping power of energetic H3+ clusters in plasmas

Vicinage Effects for a Nitrogen Molecular Cluster in Plasmas

Review of stopping power and Coulomb explosion for molecular ion in plasmas

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