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User name brads
Log entry time 21:39:58 on November 18, 2008
Entry number 249625
keyword=Modified shielding around BB Cerenkov witness PMT (iteration 2)
I put some lead plates around the sides of the witness PMT. Top and
bottom are covered by a 1" thick Al plate. The front side (facing the
target) is open.
Signal and HV in use are from Cerenkov PMT 19.
A copy of this log entry has been emailed to: meziani