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تسجيل مستخدم جديدAfterpulse Measurements of R7081 Photomultipliers for the Double Chooz Experiment
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We present the results of afterpulse measurements performed as qualification test for 473 inner detector photomultipliers of the Double Chooz experiment. The measurements include the determination of a total afterpulse occurrence probability as well as an average time distribution of these pulses. Additionally, more detailed measurements with different light sources and simultaneous charge and timing measurements were performed with a few photomultipliers to allow a more detailed understanding of the effect. The results of all measurements are presented and discussed.
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The Double Chooz experiment measures the neutrino mixing angle $theta_{13}$ by detecting reactor $bar{ u}_e$ via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintil
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