A PC based data acquisition cum control system has been developed using a general purpose interface bus (GPIB/IEEE-488/IEC-625) plug in card and GPIB interfaceable NIM electronics for use in experiments on absorption spectroscopy studies of molecules using laser-induced fluorescence (LIF), resonance multiphoton ionization (REMPI), electron impact ionization and dissociative attachment from the ground state as well as from excited states, to name a few examples. Unlike commercially available multichannel scalers, this system can handle several parameters as the acquisition parameter (e.g., dye laser) is scanned over the desired wavelength in preselected segments saving precious data acquisition time. This system has been tested on laser excited dissociative electron attachment experiments.
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