Young-type interference in projectile-electron loss in energetic   ion-molecule collisions
  Under certain conditions an electron bound in a fast projectile-ion, colliding with a molecule, interacts mainly with the nuclei and inner shell electrons of atoms forming the molecule. Due to their compact localization in space and distinct separation from each other these molecular centers play in such collisions a role similar to that of optical slits in light scattering leading to pronounced interference in the spectra of the electron emitted from the projectile. 
A.B.Voitkiv, B.Najjari, D.Fischer, A.Artemyev and A.Surzhykov
physics.atom-ph quant-ph