Figure 2
Schematic drawing of the REMI. Shown are the main components, i.e. spectrometer, ion detector, electron detector and a pair of Helmholtz coils. The FEL beam (purple) is focused into a supersonic gas jet (green spheres). Created ions (red trajectory) and electrons (blue trajectory) are guided by a combination of an electric (E) and a magnetic field (B) onto their respective detector. The coordinate system (x, y, z) used within this section is also shown. The figure is adapted from Schmid (2018). |