Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 5: Pixel-Detektoren I
T 5.8: Vortrag
Montag, 19. März 2018, 17:45–18:00, Philo-HS5
The First Large Scale Fully Monolithic HV-CMOS Sensor: MuPix8 — •Heiko Augustin1, Alena Larissa Weber1,2, Mridula Prathapan2, and Ivan Peric2 for the Mu3e collaboration — 1Physikalisches Institut Heidelberg — 2Karlsruher Institut für Technologie
The Mu3e experiment is dedicated to the search for the lepton flavour violating decay µ+ → e+e−e+ with an unprecedented sensitivity of one in 1016 decays. In the Standard Model this decay is suppressed to a branching ratio below 10−54. Thus, any observation of a signal is a clear sign for New Physics. To reach the sensitivity goal a pixel tracker with low material budget and high rate capability is required. The technology of choice are High Voltage Monolithic Active Pixel Sensors (HV-MAPS) produced in the AMS aH18 180 nm HV-CMOS process, which allows to build fast pixel detectors thinned to 50 µm .
In this talk the architecture of the first large 2× 1 cm2 prototype MuPix8 is presented. It houses three 1.25 Gbit/s data links and tests circuits for timewalk suppression, aiming at a time resolution below 10 ns.
Further the next step towards a full module integration of the final pixel sensor with the test of a reduced slow control scheme on the MuPix9 chip is presented.