Cutaway visualization of the apparatus.
Cutaway illustration of the spectrometer. A pulsed beam of electrons is crossed with a supersonic gas jet. Ionic fragments resulting from the interaction are subsequently extracted to the detector with a pulsed electric field in between electron bunches.
Timing diagram for the acquisition system.
Momentum density plots in the plane parallel to the incoming electron momentum and perpendicular to the gas jet. Four energies are shown for O− production from O2. The electron beam points up vertically in all images.
Kinetic energy yields of O− ions from O2 at varying electron energies. The ion formation is strongest at around 6.5 eV.
Angular distribution of O− formation from dissociative attachment to O2. The initial electron momentum points along 0°.
Article metrics loading...
Full text loading...