Feb 21 – 25, 2022
Vienna University of Technology
Europe/Vienna timezone

The MIMOSIS pixel sensor for the CBM Micro-Vertex Detector and beyond.

Feb 24, 2022, 10:15 AM
20m
Vienna University of Technology

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Live Presentation Semiconductor Detectors Semiconductor Detectors

Speaker

Andrei Dorokhov (Centre National de la Recherche Scientifique (FR))

Description

The Micro-Vertex Detector of the CBM experiment at FAIR will be equipped with the full custom CMOS Pixel Sensor called MIMOSIS designed at IPHC, which is also developed for the EU project CREMLINplus and serves as a forerunner for future high precision tracking devices.
Several prototypes and building blocks are developed and tested by IPHC-IKF-GSI collaboration in order to fulfill the requirements such as spatial resolution of ~5 $\mu m$, radiation tolerance to $7\times10^{13}n_{eq} /cm^2$ (1MeV) and 5 Mrad, continuous read-out with 5 $\mu s$ time stamp and $70~MHz/cm^2$ peak counting rate.
In the first full scale prototype (MIMOSIS-1) the digital logic reduces the data flow from up to 20 Gbits/s to 2.56 Gbits/s at the sensor output by aggregating the data.
Front-end circuit was inspired by ALPIDE (CERN) chip, major difference is an introduction of AC coupled diode variant, allowing for increasing bias voltage and improving the radiation tolerance. However, input capacitance also increases, the trade-off between AC and DC coupling will be discussed.
The results of laboratory tests and beam measurements of MIMOSIS-1, showing the resolution, the charge collection efficiency and the detection efficiency will be presented for different variants of pixels.
The performances before and after irradiation will be assessed in order to validate the final sensor prototype (MIMOSIS-2) which is planned to be submitted in 2021/2022.

Primary experiment CBM experiment at FAIR

Primary authors

Abdelkader Himmi (Centre National de la Recherche Scientifique (FR)) Andrei Dorokhov (Centre National de la Recherche Scientifique (FR)) Auguste Guillaume Besson (Centre National de la Recherche Scientifique (FR)) Benedict Arnoldi-Meadows (IKF) Christian Peter Muntz (Goethe University Frankfurt (DE)) Christine Guo Hu (Centre National de la Recherche Scientifique (FR)) Claude Pierre Colledani (Centre National de la Recherche Scientifique (FR)) Frederic Morel (Centre National de la Recherche Scientifique (FR)) Gilles Lucien Claus (Centre National de la Recherche Scientifique (FR)) Grégory Bertolone (IPHC/IN2P3/CNRS/UDS) Guy Doziere (IPHC) Hasan Darwish (IKF) Isabelle Valin (IPHC) Jan Michel (Goethe University Frankfurt (DE)) Jerome Baudot (IPHC - Strasbourg) Joachim Stroth (Goethe University Frankfurt (DE)) Kimmo Jaaskelainen (Centre National de la Recherche Scientifique) Marc Winter (Centre National de la Recherche Scientifique (FR)) Mathieu Goffe (Centre National de la Recherche Scientifique (FR)) Matthieu Specht (IPHC) Michael Deveaux (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) Michal Koziel (Goethe University Frankfurt (DE)) Philipp Klaus (Johann-Wolfgang-Goethe Univ. (DE)) Roma Bugiel (IPHC) Thanh Hung Pham (Centre National de la Recherche Scientifique (FR)) Yue Zhao (IPHC) Ziad El Bitar (Centre National de la Recherche Scientifique (FR))

Presentation materials