Net-ionization cross sections of rare gases by fully-stripped heavy ion impact

1997 ◽  
Vol T73 ◽  
pp. 238-239 ◽  
Author(s):  
S Makino ◽  
T Matsuo ◽  
M Mizutani ◽  
M Sano ◽  
T Kohno ◽  
...  
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Rare Gases ◽  
Ionization Cross ◽  
Ion Impact ◽  
Ionization Cross Sections

MATRIX EFFECTS ON K-SHELL IONIZATION CROSS SECTIONS IN Al/Si ALLOYS

2002 ◽  
Vol 12 (01n02) ◽  
pp. 1-5
Author(s):  
M. NEKAB ◽  
Ch. HEITZ
Keyword(s):  
Cross Sections ◽  
Matrix Effects ◽  
Production Cross ◽  
Heavy Ion ◽  
Double Scattering ◽  
Scattering Mechanism ◽  
Ionization Cross ◽  
X Ray ◽  
Ionization Cross Sections ◽  
Shell Ionization

Thick targets consisting in Al/Si alloys were bombarded with 1.0 to 5.0 MeV Ar ions. The K X-ray production cross sections were deduced from the measured yields by using the Merzbacher-Lewis formula extended to heavy ion bombardment. The density dependence on the K X-ray production cross sections of Al and Si was observed. This phenomena can be interpreted within the molecular orbital double-scattering mechanism.

scholarly journals Generalized multiphoton-ionization cross sections of the rare gases for 500-fs, 248.6-nm pulses

1998 ◽  
Vol 57 (1) ◽  
pp. 392-400 ◽  
Author(s):  
C. J. G. J. Uiterwaal ◽  
D. Xenakis ◽  
D. Charalambidis ◽  
P. Maragakis ◽  
H. Schröder ◽  
...  
Keyword(s):  
Cross Sections ◽  
Multiphoton Ionization ◽  
Rare Gases ◽  
Ionization Cross ◽  
Ionization Cross Sections

INNER-SHELL IONIZATION BY LIGHT-ION IMPACT

1991 ◽  
Vol 01 (03) ◽  
pp. 209-239 ◽  
Author(s):  
TAKESHI MUKOYAMA
Keyword(s):  
Cross Sections ◽  
Relativistic Effect ◽  
Target Electron ◽  
Ionization Cross ◽  
Plane Wave Born Approximation ◽  
Inner Shell Ionization ◽  
Ion Impact ◽  
Ionization Cross Sections ◽  
Ecpssr Theory ◽  
Shell Ionization

The ECPSSR theory to calculate the inner-shell ionization cross sections by light-ion impact is studied. Starting from the general formulation of the plane-wave Born approximation, the corrections for the energy-loss effect (E) and the Coulomb-deflection effect (C) of the projectile, and for the binding-polarization effect in the perturbed-stationary-state approach (PSS) and the electronic relativistic effect (R) of the target electron are described. The calculated values in the ECPSSR theory are compared with the experimental data. In general, agreement is good, but there are systematic deviations for low-energy projectiles. The comparison with other theoretical treatments for the inner-shell ionization is discussed.

AbsoluteL-subshell ionization cross-sections ofZ∼50 targets by4He ion impact

1987 ◽  
Vol 9 (1) ◽  
pp. 71-85 ◽  
Author(s):  
E. Perillo ◽  
G. Spadaccini ◽  
M. Vigilante ◽  
P. Cuzzocrea ◽  
N. De Cesare
Keyword(s):  
Cross Sections ◽  
Ionization Cross ◽  
Ion Impact ◽  
Ionization Cross Sections

K-X RAY PRODUCTION CROSS SECTIONS OF HEAVY LANTHANIDES OVER THE ENERGY RANGE OF 3–40 MeV/amu

1995 ◽  
Vol 05 (01) ◽  
pp. 57-67 ◽  
Author(s):  
K. SERA ◽  
K. ISHII ◽  
H. ORIHARA ◽  
S. MORITA
Keyword(s):  
Energy Range ◽  
Cross Sections ◽  
Production Cross ◽  
Ionization Cross ◽  
X Ray ◽  
Heavy Lanthanides ◽  
Wide Energy ◽  
Ion Impact ◽  
Ionization Cross Sections ◽  
Ecpssr Theory

Partial K-x ray production cross sections of dysprosium, erbium and lutetium by proton and 3He-ion impact have been measured over the incident energy range of 3-40 MeV/amu. It is found that the measured ionization cross sections become larger in comparison with the prediction of PWBA theory and agree well with the ECPSSR theory in the wide energy region. This fact means that relativistic effect of inner-shell electrons is the most predominant among many effects such as the energy loss and the Coulomb deflection of the projectile and also the effects of polarization and increased binding energy of orbital electrons in the perturbed stationary states.

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