In this work we have measured the contribution of the Coulomb explosion to the electronic stopping power of molecular hydrogen ions (H+2 and H + 3 ) channeling along the Si 〈100〉 direction. To this end, we have used a SIMOX target, consisting of a crystalline 〈100〉 Si with a buried layer of SiO2. The measurements of the energy loss of H, H+2 and H + 3 have been carried out using the standard ch...

Abstract Using the dielectric theory for a weakly coupled plasma we investigate the stopping power of the ion in a temperature anisotropic magnetized electron plasma. The analysis is based on the assumption that the energy variation of the ion is much less than its kinetic energy. The obtained general expression for stopping power is analyzed for weak and strong magnetic fields (i.e., for the e...

We have evaluated the energy loss of swift hydrogen ions moving through a solid target, paying special attention to the effect due to the polarization of the projectile. Our calculation is done in the framework of the dielectric formalism, taking into account the contribution to the energy loss due to the charge fraction of protons and hydrogen atoms, the electronic capture and loss processes, ...

The velocity dependence of the stopping power of swift protons and deuterons in low energy collisions with hydrogen and helium gas targets is investigated with the numerical solution of the time-dependent Schrödinger coupled-channels equations using molecular orbital wavefunctions. At low projectile energies the stopping is mainly due to nuclear stopping, charge exchange of the electron, and ex...

The researchers made significant progress in all of the proposed research areas. The first major task in the proposal involved duality in stochastic control and optimal stopping. In support of this task, the researchers developed new methods for efficiently solving optimal stopping problems of partially observable Markov processes and optimal stopping problems under jump-diffusion processes. Th...