Osterwalder, AndreasNee, Matthew J.Zhou, JiaNeumark, Daniel M.2010-04-012010-04-012010-04-01200410.1063/1.1787491https://infoscience.epfl.ch/handle/20.500.14299/49068A technique for high resoln. anion photodetachment spectroscopy is presented that combines velocity map imaging and anion threshold photodetachment. This method, slow electron velocity-map imaging, provides spectral line widths of better than 1 meV. Spectra over a substantial range of electron kinetic energies are recorded in a single image, providing a dramatic redn. of data acquisition time compared to other techniques with comparable resoln. We apply this technique to at. iodine and the van der Waals cluster I.CO2 as test systems, and then to the pre-reactive Cl.D2 complex where partially resolved structure assigned to hindered rotor motion is obsd. [on SciFinder (R)]Imaging (electron velocity-map; high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging); Anions; Electron photodetachment (high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging); Van der Waals clusters (high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging demonstrated for); Photoelectron spectra (imaging; high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging); Velocity (map imagingelectron; high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging); Spin-orbit splitting (of Cl in cluster with D2; high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging); Photoelectrons (velocity imaging; high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging)photodetachment anion photoelectron imaging electron velocity maptext::journal::journal article::research article