Note on Drexel tests of the IMB R1408 PMTs used in the inner veto of   both far and near detectors of the Double Chooz experiment
  This report is related to the testing performed at Drexel University of 250 R1408 PMTs. Based on this testing, 156 R1408 PMTs were chosen to be used in the inner veto of the detectors of the Double Chooz experiment. 
Karim Zbiri
physics.ins-det