scholarly journals Kinetic energy and angular dependence of activated dissociative adsorption of N2 on W(110): Observed insensitivity to incidence angle

1984 ◽  
Vol 81 (5) ◽  
pp. 2515-2516 ◽  
Author(s):  
D. J. Auerbach ◽  
H. E. Pfnür ◽  
C. T. Rettner ◽  
J. E. Schlaegel ◽  
J. Lee ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Angular Dependence ◽  
Incidence Angle ◽  
Dissociative Adsorption ◽  
Adsorption Of N2

Dissociative adsorption of N2 on W(110): Theoretical study of the dependence on the incidence angle

2007 ◽  
Vol 601 (18) ◽  
pp. 3726-3730 ◽  
Author(s):  
M. Alducin ◽  
R. Díez Muiño ◽  
H.F. Busnengo ◽  
A. Salin
Keyword(s):  
Theoretical Study ◽  
Incidence Angle ◽  
Dissociative Adsorption ◽  
Adsorption Of N2

scholarly journals Impact Energy and Angular Dependence of L X-ray Emission from a Thick Polycrystalline Tungsten Element Induced by 15–25 keV Electrons

Atoms ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 82
Author(s):  
Bhupendra Singh ◽  
Suman Prajapati ◽  
Bhartendu K. Singh ◽  
R. Shanker
Keyword(s):  
Angular Dependence ◽  
Impact Energy ◽  
Intensity Ratio ◽  
Incidence Angle ◽  
Angular Variation ◽  
Measured Intensity ◽  
Polycrystalline Tungsten ◽  
Simulation Results ◽  
The Impact ◽  
Good Agreement

The impact energy and angular dependence of L X-rays of a thick polycrystalline tungsten (W; atomic number, Z = 74) target induced by 15–25 keV electrons has been measured at different angles varying from 15° to 75° at intervals of 5° using a Si PIN photodiode detector. The variation of measured relative intensity of Ll, Lα, Lβ and Lγ characteristic lines as a function of incidence angle is found to be anisotropic and the measured variation compares well with the PENELOPE simulation results. The angular variation of intensity ratio of Ll/Lα and Lβ/Lα shows anisotropic distribution, whereas the angular variation of the Lγ/Lα ratio exhibits almost isotropic distribution within the uncertainty of measurements. These measured ratios are found to be in good agreement with Monte Carlo (MC) calculations. The measured intensity ratios of Lβ/Lα and Lγ/Lα at a given incidence angle show a linear dependence with impact energy and exhibit good agreement with simulation results; however, the measured intensity ratio of Ll/Lα shows a non-linear variation with the impact energy and yields poor agreement with theoretical calculations.

BREAKDOWN OF THE FORWARD SCATTERING MODEL IN MgO(001)

1999 ◽  
Vol 06 (06) ◽  
pp. 1207-1214 ◽  
Author(s):  
A. CHASSÉ ◽  
L. NIEBERGALL ◽  
P. RENNERT ◽  
I. UHLIG ◽  
T. CHASSÉ
Keyword(s):  
Angular Distribution ◽  
Kinetic Energy ◽  
Multiple Scattering ◽  
Angular Dependence ◽  
Cluster Model ◽  
Distribution Curve ◽  
Forward Scattering ◽  
Auger Electrons ◽  
Scattering Model

Typically, enhanced intensities are observed along low-index crystallographic directions of the crystal when Auger or photoelectrons with a kinetic energy of several hundred eV or more are emitted from atoms in a solid. This effect is a result of strong forward scattering of emitted electrons by overlying lattice atoms. Contrary to this image, a strong dip along the [110] direction has been found in the angular distribution curve of O-KLL Auger electrons of the MgO(001) surface, even though the kinetic energy of O-KLL Auger electrons is about 500 eV. The angular dependence of Auger (O-KLL, Mg-KLL) and photoelectrons (O1s) in MgO(001) is discussed and explained within a multiple scattering cluster model, respectively.

Dissociative adsorption of N2 on the W(100) surface

2004 ◽  
Vol 556 (2-3) ◽  
pp. 129-144 ◽  
Author(s):  
G Volpilhac ◽  
A Salin
Keyword(s):  
Dissociative Adsorption ◽  
Adsorption Of N2

The influence of surface metal composition of FeCr alloys on the dissociative adsorption of N2

1988 ◽  
Vol 193 (3) ◽  
pp. 336-352 ◽  
Author(s):  
P.A. Dowben ◽  
A. Miller ◽  
H.-J. Ruppender ◽  
M. Grunze
Keyword(s):  
Dissociative Adsorption ◽  
Metal Composition ◽  
Surface Metal ◽  
Adsorption Of N2

scholarly journals The reaction rate for dissociative adsorption of N2 on stepped Ru(0001): Six-dimensional quantum calculations

2005 ◽  
Vol 122 (23) ◽  
pp. 234702 ◽  
Author(s):  
Rob van Harrevelt ◽  
Karoliina Honkala ◽  
Jens K. Nørskov ◽  
Uwe Manthe
Keyword(s):  
Reaction Rate ◽  
Dissociative Adsorption ◽  
Quantum Calculations ◽  
Adsorption Of N2
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