Research Article

Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments

Figure 6

(a) Ionization volume and coordinate system defined for the simulations (not to scale). OA, ion emission direction; OB, projection of OA on the 𝑥 - 𝑧 plane; 𝜃 , elevation angle; 𝜙 , azimuth angle. (b) Ion trajectories starting from the point ( 𝑥 , 𝑦 , 𝑧 ) = (−0.5, 1.5, 0.5). (c) Expansion of (b) near the starting points of the ion flights.
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