Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 5: Pixel-Detektoren I
T 5.10: Vortrag
Montag, 19. März 2018, 18:15–18:30, Philo-HS5
MuPix9 - a HV-MAPS prototype with serial powering — •Alena Larissa Weber1, 2, Heiko Augustin1, Mridula Prathapan2, and Ivan Peric2 — 1Physikalisches Institut Heidelberg — 2Karlsruher Institut für Technologie
The Mu3e experiment is searching for the charged lepton flavour violating decay µ+ → e+e−e+ with a sensitivity of one in 1016 decays (in phase II). The core elements of the detector are High Voltage Monolithic Active Pixel Sensors (HV-MAPS) which are designed and produced in the AMS aH18 HV-CMOS process with a minimal gate length of 180nm.
In 2017 a large prototype (1 x 2 cm2 ) called MuPix8 was submitted, produced and passed the first tests successfully. Currently, we are working towards the final MuPix design. For the final version several new features are required regarding the powering and the command decoder. To test new circuits, a smaller sensor prototype was developed, the MuPix9. On this chip, novel serial powering concepts for the Mu3e experiment were realized using two power regulators. Furthermore the powering of the analog and digital part was separated. Serial powering concepts enable significant reduction of the power supply current and necessary power connections to the sensor-chip.
In this talk different concepts of serial powering for the MuPix sensor and the architecture of the MuPix9 will be presented.