Baseline noise measurements wo injection.

measure noise in both HV and LV.

wings of APV25 using cmc with 128 strip are visible wo injection. (folder CAEN_PS, run name Noise_xxx.dat).

CMC measurements wo injection:
* LV 300kHz, 1MHz + harmonics
* HV also noisy, few peak showed a induction of about 1 mA. the injected noise goese through p-side HV and returns at n-side HV - and vise versa-.

@ caen HV Ctrl (software)
always shows a current with about 0.5 mA with LV and HV switched off....