Low energy, ion-induced electron and ion emission from stainless steel: The effect of oxygen coverage and the implications for discharge modeling

1999 ◽  
Vol 85 (3) ◽  
pp. 1832-1837 ◽  
Author(s):  
S. G. Walton ◽  
J. C. Tucek ◽  
R. L. Champion ◽  
Yicheng Wang
Keyword(s):  
Stainless Steel ◽  
Low Energy ◽  
Oxygen Coverage ◽  
Effect Of Oxygen ◽  
Ion Emission ◽  
Discharge Modeling

Secondary-electron and negative-ion emission from Al: Effect of oxygen coverage

1996 ◽  
Vol 53 (21) ◽  
pp. 14127-14134 ◽  
Author(s):  
J. C. Tucek ◽  
S. G. Walton ◽  
R. L. Champion
Keyword(s):  
Secondary Electron ◽  
Negative Ion ◽  
Oxygen Coverage ◽  
Effect Of Oxygen ◽  
Ion Emission

Evaluation of the uncertainty associated with sample holders in NAA measurements in LAN/IPEN

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Guilherme Soares Zahn ◽  
Regina Beck Ticianelli ◽  
Mitiko Saiki ◽  
Frederico Antonio Genezini
Keyword(s):  
Stainless Steel ◽  
Neutron Activation Analysis ◽  
Neutron Activation ◽  
Gamma Rays ◽  
Experimental Error ◽  
Steel Sample ◽  
Low Energy ◽  
Stainless Steel Sample ◽  
Gamma Emission ◽  
Energy Gamma

In IPEN’s Neutron Activation Laboratory (LAN/IPEN), thin stainless steel sample holders are used for gamma spectrometry in NAA measurements. This material is very practical, but its chemical composition may be troublesome, as it presents large amounts of elements with intermediate atomic number, with attenuation factors for low-energy gamma-rays that must not be neglected. In this study, count rates obtained using different sample holders were compared. To accomplish that, an Am-241 source, with 59-keV gamma emission, was used so that low-energy gamma attenuation differences can be determined. Moreover, in order to study the energy dependence of these differences, a Ho-166m source was also used. From these results, it was possible to analyze the experimental error associated to the variations between sample holders, with the aim of introducing an addictive term to the uncertainty analysis of comparative Neutron Activation Analysis results.

Surface morphology of low energy hydrogen ion eroded stainless steel

1979 ◽  
Vol 41 (3) ◽  
pp. 185-186 ◽  
Author(s):  
D. M. Mattox ◽  
D. J. Sharp
Keyword(s):  
Stainless Steel ◽  
Surface Morphology ◽  
Low Energy ◽  
Hydrogen Ion

Degradation of reflectivity in stainless steel mirrors under irradiation with low-energy helium ions

2009 ◽  
Vol 386-388 ◽  
pp. 1038-1040 ◽  
Author(s):  
H. Urabe ◽  
M. Miyamoto ◽  
K. Ono ◽  
M. Tokitani ◽  
N. Yoshida
Keyword(s):  
Stainless Steel ◽  
Low Energy ◽  
Helium Ions
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