
%0 Journal Article
%A Mikosza, AG 
%A Williams, JF 
%T The Triple Coincidence Detection of the Helium 3<sup>1</sup>D State Decay
%J Australian Journal of Physics
%D 1996/04/01
%V 49
%N 2
%P 375-382
%K 
%R https://doi.org/10.1071/PH960375
%U https://www.publish.csiro.au/paper/PH960375 
%X The first triple coincidence detection of the scattered energy loss electron and the sequential cascading photons, 667·8 nm 31 D &#8594; 21P and 58·4 nm 21P &#8594; 11S, from the electron impact excitation of the 31D state of helium is reported. An experimental method for identification and determination of the triple coincidences and initial results is reported. The measurement is the final experimental step in determining all the information to define completely the excited 3D state. 
