Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 93: Detectors 9 (gas detectors)

T 93.3: Talk

Thursday, March 7, 2024, 16:30–16:45, Geb. 30.23: 2/17

Status of new GridPix production in Bonn — •Sabine Hartung, Yevgen Bilevych, Jochen Kaminski, and Klaus Desch — Physikalisches Institut Universität Bonn

GridPixes are Micropattern Gaseous Detectors optimized for highest resolution and single primary electron detection. It uses a highly pixelized readout ASIC, such as the Timepix and Timepix3, which have a pixel pitch of 55× 55µm. To protect the ASIC an additional protection layer is built on the surface of the chip. On top a Micromegas gas amplification stage is built by photolithographic postprocessing. So far, this process has been done at the Fraunhofer Institute IZM in Berlin but is now being transfered to the Forschungs- und Technologiezentrum Detektorphysik (FTD) in Bonn. Here, besides the standard process developed before, more flexible production techniques without masks are available, allowing for a wider range of optimization.

This talk will explain both the general production steps as well as the status of the production in Bonn.

Keywords: Tracking Detector; GridPix