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User name hachemi/kent
Log entry time 16:57:07 on July22,2004
Entry number 129297
keyword=new blumi HVs
We set the lumi HV to reflect the changes in blumi2 and 6. Those two detectors
swapped positions during the access. Blumi2 (still corresponds to 1:30 on the
clock, but physically is the detector that used to be blumi 6) has lower rate
and required higher HV, just like before. So presumably that position is
somehow shielded line-of-sight from the target.
The detector now in the blumi6 position has HV compatible with the other
detectors. Very interesting!
The new HV are recorded below (only blumi2 and 6, which are channels 1 and 5,
have been changed).
FIGURE 1