Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 90: Silicon trackers 4
T 90.2: Vortrag
Donnerstag, 7. März 2024, 16:15–16:30, Geb. 30.22: kl. HS B
Test beam characterization of the H2M chip designed in a 65 nm CMOS imaging process — •Sara Ruiz Daza1,3, Rafael Ballabriga2, Eric Buschmann2, Michael Campbell2, Raimon Casanova Mohr2, Dominik Dannheim2, Ana Dorda2, Finn Feindt1, Philipp Gadow2, Ingrid-Maria Gregor1,3, Karsten Hansen2, Lennart Huth1, Iraklis Kremastiotis2, Stefano Maffessanti1, Younes Otarid2, Christian Reckleben1, Judith Schlaadt1, Simon Spannagel1, Tomas Vanat1, Gianpiero Vignola1,3, and Håkan Wennlöf1 — 1DESY, Hamburg, Germany — 2CERN, Geneva, Switzerland — 3University of Bonn, Bonn, Germany
The Tangerine project is studying monolithic active pixel sensors (MAPS) that are manufactured using a 65 nm CMOS imaging process. To investigate this technology and explore the design challenges of porting a hybrid pixel de- tector architecture into a monolithic chip, the H2M (Hybrid-to-Monolithic) test chip has been developed. The chip matrix consists of 64x16 square pixels with a size of 35x35 μm2. The sensor is designed in the so-called n-gap layout to enhance fast charge collection. The H2M chip can operate in four different acquisition modes: ToT, ToA, Photon Counting, and Triggered mode. The characterization of these modes provides a fundamental understanding of the analog/digital front-end designs. This contribution presents the validation and characterization of all four readout modes in the laboratory. It also presents first results on detection efficiency, spatial resolution, and time resolution obtained in test beam campaigns.
Keywords: H2M; Pixel; Monolithic; CMOS; Testbeam