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User name Nilanga
Log entry time 23:55:35 on February 20,1999
Entry number 14999
This entry is a followup to: 14861
keyword=Sintillator efficiency
The efficiency of the electron spectrometer S2 left phototube # 3 was found to be low this morning. The HV was raised to 2180 V. Bogdan pointed out that the high voltage limit for these tubes are around 2300 V. So this tube ( and several other tubes) may need to be replaced soon.