Münster 2017 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 94: Pixeldetektoren 4
T 94.9: Vortrag
Mittwoch, 29. März 2017, 18:50–19:05, VSH 116
Readout of the Mu3e pixel detector — •Sebastian Dittmeier for the Mu3e collaboration — Physikalisches Institut, Universität Heidelberg
The Mu3e experiment searches for the charged lepton flavor violating decay µ+→ e+e−e+ with a target sensitivity of one in 1016 decays. The Mu3e detector consists of an ultra-thin silicon pixel tracking detector using the HV-MAPS (High Voltage Monolithic Active Pixel Sensor) technology to measure the momentum of the decay products, and scintillating fibres and tiles for precise timing.
This talk covers the readout components of the pixel detector. The pixel sensors send their hit information untriggered via fast serial data links to FPGAs located on the frontend boards where the data is time sorted. Via fast optical links, this data is sent to the switching boards where the data from several detector segments is merged into time slices of the full detector and provided to the computing nodes that perform online event reconstruction and filtering based on graphics processing units.
A prototype of the frontend board including the FPGA and optical transceivers has been produced and evaluated. Results of these studies will be presented.