Energy loss in fast-particle surface scattering at grazing incidence

1994 ◽  
Vol 49 (7) ◽  
pp. 4881-4885 ◽  
Author(s):  
J. R. Manson ◽  
R. H. Ritchie
Keyword(s):  
Energy Loss ◽  
Particle Surface ◽  
Grazing Incidence ◽  
Fast Particle ◽  
Surface Scattering

Experimental and Theoretical Investigations on the Interrelation of Charge Exchange Processes and Energy Loss of Particles at Metal Surfaces

1991 ◽  
Vol 223 ◽  
Author(s):  
A. NÄrmann ◽  
W. Heiland ◽  
R. Monreal ◽  
F. Flores ◽  
P. M. Echenique
Keyword(s):  
Energy Loss ◽  
Charge Exchange ◽  
First Principles ◽  
Particle Surface ◽  
Grazing Incidence ◽  
High Energy ◽  
Exchange Processes ◽  
High Energy Tail ◽  
Theoretical Investigations ◽  
Low Energy Tail

ABSTRACTWe present experiments and a theoretical model for the energy loss distribution of specularly reflected particles after slow (2-5 keV) He ions have been impinging on a Ni(110) surface under grazing incidence. The energy spectra of the backscattered particles are asymmetric with the low-energy tail falling off more slowly than the high-energy tail does.This asymmetry is accounted for by considering charge exchange events during the interaction with the surface. The main neutralization channel for this system is the Auger-neutralization from the conduction band into the He-1s ground state. The transition rate for this process was calculated from first principles. Assuming that the ‘friction coefficient’ for the system particle-surface depends on the charge state of the particle, we calculate the energy lost by a particle during the interaction as a sum of different contributions belonging to different charge states.

Scattering, energy loss and X-ray production of protons of 150–275 keV at grazing incidence on tungsten crystals

1975 ◽  
Vol 27 (1-2) ◽  
pp. 97-108 ◽  
Author(s):  
G. S. Harbinson ◽  
B. W. Farmery ◽  
H. J. Pabst ◽  
M. W. Thompson
Keyword(s):  
Energy Loss ◽  
Grazing Incidence ◽  
X Ray

Comparative Study of Structural Damage Under Irradiation in SiC Nanostructured and Conventional Ceramics

2006 ◽  
Vol 981 ◽  
Author(s):  
Yann Leconte ◽  
Isabelle Monnet ◽  
Marc levalois ◽  
Magali Morales ◽  
Xavier Portier ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Energy Loss ◽  
Structural Damage ◽  
Nuclear Energy ◽  
Nuclear Reactors ◽  
Grazing Incidence ◽  
New Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Before And After

AbstractIn the context of research on new materials for next generation nuclear reactors, it becomes more and more interesting to know what can be the advantages of nanostructured materials for such applications. In this study, we performed irradiation experiments on microstructured and nanostructured â-SiC samples, with 95 MeV Xe and 4 MeV Au ions. The structure of the samples was characterized before and after irradiation by grazing incidence X ray diffraction and Raman spectroscopy. The results showed the occurrence of a synergy between electronic and nuclear energy loss in both samples with 95 MeV Xe ions, while the nanostructured pellet was found to have a better resistance to the irradiation with 4 MeV Au ions.

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