Sr90, large scintillator,
Origami Mod. #4
HV=+-40V, Ibias=1,6µA
CO2 cooling on, Tin=-20.5°C, Tout=-21.5°C
I²C settings for cooled APV chips --> same as used in run010
e:\cvi-projects\apvdaq_fadc\origami6_V2_multi6_cooled.cfg
Lab measurement with new dark box but old, large scintillator
SMU: +HV=Inv.Nr. 545-77 -HV=Inv.Nr. 540-702
HVret configuration:
0 ... switch open / not connected
1 ... switch closed / connected
| SMU |
Dock Box |
J5 |
J6 |
J7 |
| 0 |
1 |
1 |
0 |
0 |
J7... HV ret @ hybrid
Same as run104, but now J7 open
Again spikes in bias current!
|