User name busato
Log entry time 17:28:12 on May30,2001
Entry number 61483
keyword=change of left arm pion rejector HV and amplification box.Change the left arm pion rejector amplification box #4 and #5 from amplification 2 to amplification 8 boxes.
28 channels on the second layer are affected.
We lower the high voltage of these channels by 10%.
HV channel 6.4 to 6.11 and HV channel 9.0 to 9.5 corresponding to amplification box #4.
HV channel 9.6 to 9.11 and 10.0 to 10.7 corresponding to amplification box #5.
The change of the HV control screen is attached.
We stopped the cosmic run 1034 on the left arm and started a new run 1035.
FIGURE 1
