The unitary convolution approximation for heavy ions

PL Grande, G Schiwietz - Nuclear Instruments and Methods in Physics …, 2002 - Elsevier
The convolution approximation for the impact-parameter dependent energy loss is reviewed
with emphasis on the determination of the stopping force for heavy projectiles. In this …

Ionization and energy loss beyond perturbation theory

PL Grande, G Schiwietz - Advances in quantum chemistry, 2004 - Elsevier
A review is given on the application of the coupled-channel method for the calculation of the
electronic energy loss of ions as well as ionization in matter. This first principle calculation …

Introducing electron capture into the unitary-convolution-approximation energy-loss theory at low velocities

G Schiwietz, PL Grande - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
Recent developments in the theoretical treatment of electronic energy losses of bare and
screened ions in gases are presented. Specifically, the unitary-convolution-approximation …

Convolution approximation for the energy loss, ionization probability and straggling of fast ions

PL Grande, G Schiwietz - Nuclear Instruments and Methods in Physics …, 2009 - Elsevier
In this work we describe an extension of the convolution approximation for the ionization
probability and energy-loss straggling as a function of the impact parameter for swift ions …

Stopping and straggling of 60–250-keV backscattered protons on nanometric Pt films

FF Selau, H Trombini, GG Marmitt, AMH De Andrade… - Physical Review A, 2020 - APS
The stopping power and straggling of backscattered protons on nanometric Pt films were
measured at low to medium energies (60–250 keV) by using the medium-energy ion …

Polarization of Lyman- emission in proton-hydrogen collisions studied using a semiclassical two-center convergent close-coupling approach

SK Avazbaev, AS Kadyrov, IB Abdurakhmanov… - Physical Review A, 2016 - APS
The semiclassical convergent close-coupling approach to ion-atom collisions has been
extended to include electron-transfer channels. The approach has been applied to study the …

Energy-loss straggling of helium in elemental solids: The importance of the charge-exchange and bunching effects

FF Selau, A Molling, H Trombini, RC Fadanelli, M Vos… - Thin Solid Films, 2023 - Elsevier
In this study, we extend to Helium (He) ions the analysis of the energy-loss straggling of
protons in simple materials as presented in NIMB 497 70 (2021). Our findings show that the …

Non-linear approach to the energy loss of ions in solids

NR Arista, AF Lifschitz - Advances in Quantum Chemistry, 2004 - Elsevier
The present work includes the discussion of three main aspects in the area of the energy
loss of ions in solids. First we review some of the main features contained in the historical …

Nonperturbative stopping-power calculation for bare and neutral hydrogen incident on He

PL Grande, G Schiwietz - Physical Review A, 1993 - APS
The electronic stopping power of hydrogen beams penetrating He gas has been calculated
by solving the time-dependent Schrödinger equation. Special attention has been given to …

Energy loss of low-energy ions in transmission and backscattering experiments

D Goebl, K Khalal-Kouache, D Roth, E Steinbauer… - Physical Review A …, 2013 - APS
The determination of the electronic stopping power for low-energy ions is an experimentally
demanding task. In this paper we elaborate on the different effects of nuclear stopping and …