scholarly journals Angular Correlations in Electron?Atom Scattering

1980 ◽  
Vol 33 (5) ◽  
pp. 827 ◽  
Author(s):  
James F Williams

The principles of angular correlation coincidence experiments are discussed in relation to electron impact excitation of atoms. Examples are given of the resolution of triplet states above the 14�7 eV dissociation limit of H2 and of the determination of differential cross sections for the magnetic sublevels of the 2p state of atomic hydrogen.






1993 ◽  
Vol 71 (7-8) ◽  
pp. 326-333 ◽  
Author(s):  
B. Wallbank ◽  
J. K. Holmes ◽  
A. Weingartshofer

We report experimental differential cross sections for inelastic scattering of electrons from helium atoms in the presence of an intense (~108 W cm−2) carbon dioxide laser. The cross sections for excitation of the 21P state of helium with the simultaneous absorption or emission of one laser quantum were measured over the incident electron energy range of 36–70 eV and scattering angles of 13–31°.





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