LSTCam low-level data analysis

The main aim of the MiniCamera test is to validate and characterise all clusters in advance to shipping from Japan to Spain.
The following is the list of the measurements we are planning

1. Gain of all PMT (Single photon response at HV=1500)
2. HV vs Gain
3. Flat fielding of PMTs to the nominal voltage computed from 1),2)
4. Linearity of PMTs(+all amplification chain)
5. Pulse shape
6. Long term linearity ( monitor gains for a week)

In order to perform the test listed above, we need to study the fundamental pedestals of DRS4.

We already know that the fundamental pedestal depends, at least, on

1. Capacitor ID
2. ROI
3. delta-t
4. Position in ROI (or distance from the stopcell)

Current idea is to take the pedestal data by means of an Dragon internal trigger.
We can choose the internal trigger frequency such that they are perfectly synchronised with the domino wave, which means that the delta-t dependence is always the same.
One example is to take data at 4 different trigger frequency, each differs by 132 clock cycle, and 132 different trigger offset.
By changing the trigger frequency by 132 cycles, we change stopcell by 1024
By changing the trigger offset by 1, stopcell will move by 7 or 8.
(1 clock cylcle corresponds to 7.5 ns (133MHz))

In total 4*132 = 528.