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Excitation Plus Ionization in Electron-Atom Collisions to He+ (n=2): (e,2e), (e, eg ) and (e, 2eg ) Studies
Ionization-Excitation Helium Electron Triple Coincidence Correlation
2010/4/14
Simultaneous excitation-ionization of helium atoms by electron impact is observed by the coincidence detection of the outgoing particles. The relationship between (e,2e), (e,eg ) and (e,2eg ) experime...
Electron Impact Double Ionization of Helium from [e, (3-1)e] Experiments}
Double Ionization (e,2e) [e,(3-1)e] Coincidence Detection Electron Impact
2010/4/14
Electron impact double ionization of helium has been observed in an [e,(3-1)e] experiment at an incident electron energy of 200 eV. 110 eV scattered and 10 eV ejected electrons are observed in coincid...
The Effect of Spatially Dependent Screening On the Donor Ionization Energy in a Quantum Wire
Donor Ionization Energy Quantum Wire
2010/4/16
The effect of the spatially dependent screening on the ionization energy of a shallow donor in a 1D quantum well wire made of Ga1-xAlx/GaAs superlattice is presented. A variational approach is used to...