--------------------------
 | ISEG power supply in CR4 |
  --------------------------
    (1)
     |
     |
     | (total 60 HV cables)
     |
     |
     |
    (2)
  ----------------------------------
 | HV patch box in rack O07 and O08 |
  ----------------------------------
    (3)
     |
     |
     | (2 cables: 1 for drift and 1 for anode)
     |
     |
     |
    (4)
  ------
 | SM08 |
  ------


At this moment, we took data with three different HV condition as described below
(including cable connection to check pickup noise):



configuration: 
-------------

A) connect all cables to the ISEG power supply and drive 1000V both drift and anode  
B) connect all cables to the ISEG power supply and drive 0V both drift and anode 
C) disconnect cables at point (3)