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

Abstract

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.

Energy loss of swiftH2+andH3+Shubeita1, Grande2, Dias3 et al. 2011Phys. Rev. B132130View full textAdd to dashboardCite

“…Calculations based on the dielectric formalism yield an excellent agreement with experimental results and predicted a maximum stopping ratio of 1.5 for H + 2 molecules. 1 Other results concerning carbon [3][4][5][6] seem to be compatible with results presented in Ref. 1.…”

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

“…This model takes into account the spatial changes of the initial configuration of the protons in the molecule, due to Coulomb explosion, and it uses the dielectric formalism to evaluate the electronic energy loss and the interference effects of the particles that constitute the molecule [13]. The dielectric properties of the amorphous carbon target are described by a sum of Mermin-type energy loss function [17].…”

Molecular structure effects in the energy loss of swift boron molecular ions in solids

“…where D is the target thickness and v is the molecular ion velocity [21]. We calculate the stopping power ratio for the projectile within the framework of the dielectric formalism, which supposes a linear response of the medium to an external perturbation.…”