Charge exchange cross sections of carbon ions

Dmitriev, I. S.; Teplova, Ya. A.; Belkova, Yu. A.; Новиков, Н. В.

doi:10.1134/s1027451008020195

Cited by 4 publications

(6 citation statements)

References 8 publications

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“…The calculated total cross sections are in good agreement with the measurements of Wolff et al [16] and clearly show a strong decrease at high energy. They confirm the discrepancy with the experimental data of Dmitriev et al [17], which clearly appear to be underestimated, in particular, at lower collision energies with regard to the results of Wolff et al and to the present calculation. However, both measurements remain on the same order of magnitude at very high collision energies.…”

Section: A the B 2+ + Ne Collision Systemsupporting

confidence: 85%

“…experimental measurements of Wolff et al[16] and Dmitriev et al[17] are about the same magnitude, and our theoretical results are in good agreement with both experimental data. The values of Dmitriev et al always remain a bit lower than the data of Wolff et al…”

supporting

confidence: 90%

“…Effectively, for collision velocities in the low-to-intermediate regime, perturbative methods are no longer available for such dressed projectile ions. In order to analyze such charge-exchange processes in the nonperturbative regime, experimental measurements have been performed by several groups on the electron capture of Li-like ions, in particular, B 2+ with noble-gas targets [16,17]. Although the measured charge-transfer cross sections of B 2+ with Ar are in quite good agreement in both experiments, a significant discrepancy has been pointed out for the collision with the Ne target [16].…”

Section: Introductionmentioning

confidence: 99%

“…The partial and total cross sections have been calculated in the 10 −2 -2-a.u. velocity range corresponding to the experimental measurements and have been compared with the available experimental data [16,17].…”

Section: Introductionmentioning

confidence: 99%

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Ab initiostudy of charge exchange in collisions of B2+ions with Ne and Ar targets

et al. 2012

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The electron-capture processes in collisions of B 2+ ions with neon and argon targets have been studied theoretically using ab initio multireference configuration interaction potential-energy curves and nonadiabatic couplings. The cross sections for the simple capture process have been calculated using the semiclassical collision methods in the 10 −2 -2-a.u. velocity range (E lab ≈ [0.02-1080 keV]) and have been compared with the available experimental data. The charge-transfer mechanism is analyzed with regard to the radial and rotational interactions and appears to be quite different for both systems. Good agreement is found with the measured cross sections.

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Section: A the B 2+ + Ne Collision Systemsupporting

confidence: 85%

supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ab initiostudy of charge exchange in collisions of B2+ions with Ne and Ar targets

et al. 2012

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“…Cross sections of single-electron capture and loss in such conditions have been extensively measured during the last decades [21,23,24], especially for proton in col lision with argon target [25,26]. Data for carbon ion are more scarce, with the exception of Melo et al [27] for C 3+ in argon in the range of 80-290 keV u −1 and a comprehensive data set by Dmitriev [28] for a wide range of carbon species crossing inert gas in the range of 40-330 keV u −1 . A summary of these data can be found figure 4.…”

Section: Charge Transfer Modelmentioning

confidence: 99%

Efficient laser production of energetic neutral beams

Mollica¹,

Antonelli²,

Flacco³

et al. 2016

Plasma Phys. Control. Fusion

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Laser-driven ion acceleration by intense, ultra-short, laser pulse has received increasing attention in recent years, and the availability of much compact and versatile ions sources motivates the study of laser-driven sources of energetic neutral atoms. We demonstrate the production of a neutral and directional beam of hydrogen and carbon atoms up to 200 keV per nucleon, with a peak flow of × 2.7 10 13 atom s −1 . Laser accelerated ions are neutralized in a pulsed, supersonic argon jet with tunable density between × 1.5 10 17 cm −3 and × 6 10 18 cm −3 . The neutralization efficiency has been measured by a time-of-flight detector for different argon densities. An optimum is found, for which complete neutralization occurs. The neutralization rate can be explained only at high areal densities (> × 1 10 17 cm −2 ) by single electron charge transfer processes. These results suggest a new perspective for the study of neutral production by laser and open discussion of neutralization at a lower density.

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Simulations of guiding of low-energy ions through a single nanocapillary in insulating materials

2017

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Simulations of guiding of low-energy ions through a single nanocapillary in insulating polymers are reported. The nanocapillary has a diameter of 100 nm and a length of 10 µm. Different from previous work, in our simulations a hyperbolic function is used to describe the decay of the charges deposited on the capillary surface. The present simulations reproduce the self-organized charge-up process occurring in the capillary. It is shown that lower-energy ions undergo more oscillations to get guiding equilibrium than those of higher-energy ions, resulting in a longer charging time, which is in good agreement with previous experimental results. Moreover, the experimentally observed mass independence of ion guiding is proved in our simulations. In particular, it is found that the maximum of the repulsive field within the capillary is independent of the ion energy as well as the tilt angle. To counterbalance the increasing of the transversal energy caused by increasing the tilt angle or incident energy, the effective length of the repulsive field is expanded in a self-organizing manner.

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Charge exchange cross sections of carbon ions

Cited by 4 publications

References 8 publications

Ab initiostudy of charge exchange in collisions of B2+ions with Ne and Ar targets

Ab initiostudy of charge exchange in collisions of B2+ions with Ne and Ar targets

Efficient laser production of energetic neutral beams

Simulations of guiding of low-energy ions through a single nanocapillary in insulating materials

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