Focal-plane detector system for the KATRIN experiment

The focal-plane detector system for the KArlsruhe TRItium Neutrino (KATRIN) experiment consists of a multi-pixel silicon p-i-n-diode array, custom readout electronics, two superconducting solenoid magnets, an ultra high-vacuum system, a high-vacuum system, calibration and monitoring devices, a scintillating veto, and a custom data-acquisition system. It is designed to detect the low-energy electrons selected by the KATRIN main spectrometer. We describe the system and summarize its performance after its final installation.

Note:

28 pages. Two figures revised for clarity. Final version published in Nucl. Inst. Meth. A

29.40.Wk
29.50.+v
29.85.Ca
Neutrino mass
Low-background counting
Si p-i-n diode
Vacuum
Data acquisition
activity report
solenoid: superconductivity

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