Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 91: Silicon Detectors VIII (MAPS, misc.)

T 91.3: Vortrag

Freitag, 4. April 2025, 09:30–09:45, VG 1.101

Grazing Angle Test Beam Studies of the Hybrid-to-Monolithic MAPS Prototype — •Ono Feyens, Sara Ruiz Daza, Finn King, and Simon Spannagel — Deutsches Elektronen-Synchrotron DESY, Germany

The TANGERINE (Towards Next Generation Silicon Detectors) project at DESY investigates and develops fully integrated Monolithic Active Pixel Sensors (MAPS) using a novel 65 nm CMOS imaging technology. MAPS are an attractive technology for vertex detectors at future lepton colliders where a unique combination of high spatial resolution (≤ 3 µm), fast timing (∼ ns) and low material budget (≤ 50 µm) are required. The 65 nm technology enables the production of MAPS with an increased density of in-pixel logic.

The H2M (Hybrid-to-Monolithic) prototype is the latest chip in a series of technology demonstrators. Its design ports a hybrid pixel-detector architecture into a monolithic chip with a pixel matrix of 64x16 square pixels of size 35x35 µm². To investigate the internal electric field and charge collection characteristics of H2M, grazing angle studies are performed at the DESY II Test Beam Facility. Here, particles impinge the sensor at very shallow angles, enabling the extraction of charge collection as a function of depth. This contribution will provide an overview of the experimental setup and will show first results of the grazing angle measurements.

Keywords: MAPS; CMOS; Vertex detector; Future lepton collider; Pixel detector