SMuK 2023 – scientific programme

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T: Fachverband Teilchenphysik

T 124: Si-Strip/CMS, Pixel/DMAPS

T 124.4: Talk

Thursday, March 23, 2023, 16:35–16:50, WIL/C307

Characterization of TJ-Monopix2 - A depleted monolithic active pixel sensor with column drain readout architecture — •Christian Bespin¹, Ivan Caicedo¹, Jochen Dingfelder¹, Toko Hirono², Hans Krüger¹, Konstantinos Moustakas³, and Norbert Wermes¹ — ¹Universität Bonn, Bonn, Deutschland — ²DESY, Hamburg, Deutschland — ³Paul Scherrer Institut, Villingen, Schweiz

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.

The latest iteration TJ-Monopix2 is designed in a 180 nm TowerJazz CMOS process and features a pixel size of 33 um x 33 um. Results from laboratory measurements and test beam campaigns demonstrating threshold and noise performance as well as hit efficiency measurements will be presented to discuss the suitability of TJ-Monopix2 for use in high-radiation environments.