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9/72 PMTs 4 darkrate 4 linearity 1 unknown
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667 Slow to cooldown
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Cooldown
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Retest
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5 hrs after start of first test 5 hrs6 hrs
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667 Spe
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Cooldown
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Cooldown retest
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5 hrs after start of retest 5 hrs6 hrs
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667 Gain-Voltage
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667 Linearity
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679 Slow to cooldown
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679 Spe
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Cooldown
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Cooldown retest
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679 Gain-Voltage
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679 Linearity
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684 Positive Non-Linearity
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684 Cooldown
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684 Spe
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684 Gain-Voltage
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684 Linearity
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684 Linearity 2
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753 Positive non-linearity
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753 Cooldown
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753 Spe
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753 Gain-Voltage
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753 Linearity
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753 Linearity 2
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782 Positive non-linearity
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782 Cooldown
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782 Spe
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782 Gain-voltage
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782 Linearity
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782 Linearity 2
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783 Positive non-linearity
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783 Cooldown
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783 Spe
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783 Gain-Voltage
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783 Linearity
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783 Linearity 2
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792 Darkrate
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792 Spe
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792 Cooldown
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792 Cooldown retest
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5 hrs 6 hrs
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792 Gain-Voltage
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792 Darkrate First test: 12800 above 0.25 spe Second Test: 9100 above 0.25 spe
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792 Linearity
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794 Darkrate
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794 Darkrate First test: 14000 Second test: 9200
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794 Spe
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794 Cooldown
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794 Cooldown retest
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5 hrs6 hrs
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794 Gain Voltage
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794 Linearity
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816 First test: failure not yet diagnosed Positive Non-linearity on second test
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816: First test
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816: First Test
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The dynode signals clearly are strange But the anode and dynode signals correlate Problem with PMT, not instrumental failure in readout.
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816 Spe
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816 Gain-Voltage
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816 Linearity
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