
%0 Journal Article
%A McCarthy, Ian E. 
%T The Development of Electron Momentum Spectroscopy
%J Australian Journal of Physics
%D 1998/07/31
%V 51
%N 4
%P 593-607
%K 
%R https://doi.org/10.1071/P97081
%U https://www.publish.csiro.au/paper/P97081 
%X Electron momentum spectroscopy measures relative differential cross sections as a function of recoil momentum for energy-resolved states of the ion in a kinematically-complete electron- impact ionisation experiment. The experiment is done in a kinematic range where correct cross sections are obtained by simple reaction approximations. It amounts to a measurement of orbital momentum densities and coeffcients describing electron correlations in the ion for most ion states of a gas target. Certain ion states give information about ground-state correlations. For a solid target it amounts to a measurement of the energy-momentum density of occupied electron bands. 
