LecroyWP725Zi

Oscilloscope Noise Calibration

Noise calibration was performed using an external trigger on a channel different than the one under study, provided by a pulse generator. Characteristics of the trig pulse are outlined in the following table:

The period was selected to a high enougph value to avoid any possible saturation effects.

40 GS/s Noise

Channels 2 and 3 are calibrated with trigger provided to the alternate channel with respect to the one under investigation. Noise is evaluated on runs of 200 events with a Gaussian fit. Time scale was set to 5ns/div and no additional filtering was applied.

20 GS/s Noise

Noise for all four channels was evaluated trough a Gaussian fit of the baseline with uncertainties provided by the fit in 200 event runs. Trigger was applied to channel one fro the evaluation of channels two, three and four whereas channel four was used as a trigger input for study performed on channel 1. Time scale was set to 5ns/div and no additional filtering was applied.

-- VagelisG - 2017-03-17