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

<table>TOF spectra of Kr at <svg height="11.1375" id="M50" style="vertical-align:-0.27588pt" version="1.1" viewbox="0 0 52 11.1375" width="52" xmlns="http://www.w3.org/2000/svg">
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</svg> eV (top) and the relevant timing diagram (bottom). (a) The control experiment with the photoelectron triggers. Acontinuous voltage of 75 V was applied to the repeller. (b) The discrimination of <svg height="12.3625" id="M51" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 30.1875 12.3625" width="30.1875" xmlns="http://www.w3.org/2000/svg">
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</svg> by the PEPICO mode. The retarding grid was biased to 80 V, and a 100-V pulsed voltage was applied to the mass gate. </table>

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Figure 3

Figure 3: Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments 