Slowing down of hydrogen clusters in thin foils

Ray, E. A.; Kirsch, R.; Mikkelsen, H.H.; Poizat, Jean-Claude; Remillieux, J.

doi:10.1016/0168-583x(92)95749-h

Cited by 81 publications

(31 citation statements)

References 16 publications

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“…The stopping power ratio, defined as the stopping power of the H + 3 divided by three times the stopping power of a single proton with the same velocity as the molecule, compares fairly well with available experimental data [19] and Monte Carlo simulations [10].…”

supporting

confidence: 50%

“…This is because the distance among the protons increases with time, due to Coulomb repulsion, and when the separations become large compared with v/ω pl , the individual proton fragments are not influenced by the wakes created by their partners. For short dwell times, the internuclear separations are small (compared to v/ω pl ), so the molecule acts like a point charge, Z The comparison with the available experimental data [19] included in fig. 2 shows a very good agreement for the full range of foil thicknesses and projectile energies covered by the Solid line: our calculations using a density 2 g/cm 3 for the amorphous carbon foil; dotted line: idem with 1.7 g/cm 3 ; full circles: experiments by Ray et al [19]; open squares: calculations by Ray et al [19], and open triangle: Monte Carlo simulation [10].…”

Section: Results and Conclusion -Figure 2 Depicts The Energy Loss Rmentioning

confidence: 99%

“…Since the pioneering article of Brandt et al [4], who studied the stopping power of swift molecules in solids, a lot of theoretical work has been developed [5]- [13]. Experiments have been mainly done with hydrogen-molecular ions, H + n , ranging from small [14]- [18] to intermediate [19] values of n.…”

mentioning

confidence: 99%

“…As we shall compare our calculation with experiments done on carbon foils [19] we model the dielectric properties of an amorphous carbon target by a sum of two Mermin-type energy loss functions [23] that, at zero momentum transfer, fits the experimental energy loss function:…”

mentioning

confidence: 99%

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Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils

Denton¹,

Pérez-Pérez²,

Abril³

et al. 1996

Europhys. Lett.

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PACS. 34.50Bw -Energy loss and stopping power. PACS. 36.40−c -Atomic and molecular clusters.Abstract. -The energy loss of H + 3 -molecule beams interacting with amorphous carbon targets has been calculated, both as a function of the target thickness and the projectile velocity. We have considered the spatial changes, due to Coulomb repulsion, of the initial molecular configuration after the H + 3 ion enters the target and then used a dielectric formalism to evaluate the stopping power of the correlated protons. The ratio between the stopping power of the H + 3 molecule and that of its constituents considered individually accounts for the vicinage effects and agrees reasonably well with available experimental data.

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supporting

confidence: 50%

Section: Results and Conclusion -Figure 2 Depicts The Energy Loss Rmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils

Denton¹,

Pérez-Pérez²,

Abril³

et al. 1996

Europhys. Lett.

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“…One recent experiment [20] was performed with hydrogen clusters H"+ up to n =25. The authors measured the energy loss of clusters penetrating carbon foils at energies up to 120 keV per proton.…”

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confidence: 99%

Stopping power of large homonuclear clusters: Influence of cluster structure

et al. 1992

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A theoretical investigation based on the linear dielectric formalism is presented of the stopping of large clusters in metals at velocities above the Fermi velocity. Calculations are carried out for hydrogen clusters of 4, 13, and 100 H2 molecules stopping in aluminum. Emphasis is placed on the influence of the internal cluster structure, which enters in the present description via the pair-correlation function for the relative positions of nuclei. The target properties are modeled by Lindhard's dielectric function for a free-electron gas. Interference effects with respect to both collective and individual excitations are quantified separately for intra-and intermolecular terms, and are evaluated as a function of cluster velocity. Effects of short-range order, in particular the importance of an exclusion volume around each molecule, are clearly visible. The results indicate, however, that beyond the nearest neighbor the detailed molecular arrangement has only little influence on the stopping power for the clusters studied.

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Electronic Stopping Power of Amorphous Carbon for H2+ and H3+ Beams

García-Molina

Denton

Pérez-Pérez

et al. 2000

phys. stat. sol. (b)

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The electronic stopping power of amorphous carbon targets for H2+ and H2+ molecular beams has been analysed within the framework of the dielectric formalism. Coulomb explosion between the partners of the molecule has been taken into account to evaluate the average stopping power ratio during the dwell time. The charge state of the fragments is assumed fully stripped. Analysis and comparison of the calculated stopping power ratio with experimental data show a reasonable agreement.

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Slowing down of hydrogen clusters in thin foils

Cited by 81 publications

References 16 publications

Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils

Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils

Stopping power of large homonuclear clusters: Influence of cluster structure

Electronic Stopping Power of Amorphous Carbon for H2+ and H3+ Beams

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Slowing down of hydrogen clusters in thin foils

Cited by 81 publications

References 16 publications

Energy loss of swift H 3 + -molecule ions in carbon foils

Energy loss of swift H 3 + -molecule ions in carbon foils

Stopping power of large homonuclear clusters: Influence of cluster structure

Electronic Stopping Power of Amorphous Carbon for H2+ and H3+ Beams

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Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils

Energy loss of swift H ₃ ⁺ -molecule ions in carbon foils