Wuppertal 2015 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 34: Halbleiter: Test und Auslese 1

T 34.8: Vortrag

Montag, 9. März 2015, 18:30–18:45, K.12.18 (K3)

Fast Readout of the Pixel Detector at the Mu3e Experiment — •Ann-Kathrin Perrevoort¹, Niklaus Berger², Dirk Gottschalk¹, Qinhua Huang¹, Ivan Perić³, André Schöning¹, and Dirk Wiedner¹ for the Mu3e collaboration — ¹Physikalisches Institut, Universität Heidelberg — ²Institut für Kernphysik, Universität Mainz — ³IPE, KIT Karlsruhe

The Mu3e experiment—searching for the lepton-flavour violating decay of the muon into three electrons at an unprecedented sensitivity of one in 10¹⁶ decays—is based on a pixel tracking detector. The sensors are High-Voltage Monolithic Active Pixel Sensors, a technology which allows for very fast and thin detectors. This makes it an ideal fit for the high rate and low-momentum environment of Mu3e, where momentum resolution is dominated by multiple Coulomb scattering.
As the detector will consist of about 275 million pixels and will be operated at up to 10⁹ muon stops per second, fast data readout is crucial. The current sensor prototype MuPix7 features a readout control state machine on-chip. This allows for sending zero-suppressed hit data to an FPGA via an 800 Mbit/s LVDS link. This FPGA buffers the data and sorts it by time stamps before processing and sending to the next readout stage.
The MuPix7 design including its readout architecture will be presented.