Pump-probe analysis

In the pump-probe analysis, the average (nanmean) images of the on- and off- pulses in a train are calculated by

\[ \begin{align}\begin{aligned}\bar{A}_{on} = \Sigma A_{on} / N_{on}\\\bar{A}_{off} = \Sigma A_{off} / N_{off}.\end{aligned}\end{align} \]

If the sub-Analysis type has VFOM, the VFOM \(K_v\) and FOM \(K\) are given by

\[ \begin{align}\begin{aligned}K_v = f(\bar{A}_{on}) - f(\bar{A}_{off})\\K = \Sigma K_v.\end{aligned}\end{align} \]

Otherwise, FOM \(K\) is given by

\[K = g(\bar{A}_{on}) - g(\bar{A}_{off}).\]

Input	Description
On/off mode	Pump-probe analysis mode: reference as off: On-pulses will be taken from each train while the ‘off’ (reference image) is specified in the ImageTool. same train: On-pulses and off-pulses will be taken from the same train. Not applicable to train-resolved detectors. even\/odd: On-pulses will be taken from trains with even train IDs while off-pulses will be taken from trains with odd train IDs. odd\/even: On-pulses will be taken from trains with odd train IDs while off-pulses will be taken from trains with even train IDs.
Analysis type	See Analysis type.
On-pulse indices	Indices of all on-pulses. If ‘Pulse slicer’ is used to slice a portion of the pulses in the train, these indices are indeed the indices of the pulse in the sliced train. Pulse-resolved detector only.
Off-pulse indices	Indices of all off-pulses. Pulse-resolved detector only.
FOM from absolute on-off	If this checkbox is ticked, the FOM will be calculated based on |on - off| (default). Otherwise on - off.
Reset	Reset the FOM plot in the Pump-probe window and the global moving average count.