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T: Fachverband Teilchenphysik
T 40: Pixel Detectors 2
T 40.8: Talk
Tuesday, March 22, 2022, 18:00–18:15, T-H25
Development and characterization of a DMAPS chip in TowerJazz 180 nm technology for high radiation environments — Ivan Berdalovic2, •Christian Bespin1, Jochen Dingfelder1, Tomasz Hemperek1, Toko Hirono1,3, Fabian Hügging1, Hans Krüger1, Thanushan Kugathasan2, Cesar Augusto Marin Tobon2, Konstantinos Moustakas1, Heinz Pernegger2, Walter Snoeys2, Tianyang Wang1, and Norbert Wermes1 — 1Universität Bonn, Bonn, Deutschland — 2CERN, Genf, Schweiz — 3DESY, Hamburg, Deutschland
The increasing availability of commercial CMOS processes with high-resistivity wafers has fueled the R&D of depleted monolithic active pixel sensors (DMAPS) for usage in high energy physics experiments. One of these developments is a series of monolithic pixel detectors with column-drain readout architecture and small collection electrode facilitating low-power designs: the TJ-Monopix series.
TJ-Monopix is designed in a 180 nm TowerJazz CMOS process and features a pixel size of 33 um * 33 um. Due to improvements on the front-end electronics and sensor design of the current iteration TJ-Monopix2 the radiation hardness and efficiency could be increased while lowering the threshold and noise. Results from laboratory measurements and test beam campaigns will be presented to discuss the suitability of TJ-Monopix2 for use in high-radiation environments.