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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 8: HK+T Joint Session I: Gas Detectors/TPC

HK 8.3: Talk

Monday, March 27, 2017, 17:30–17:45, F 102

Development and construction of InGrid based gaseous detectorsKlaus Desch, Jochen Kaminski, Christoph Krieger, and •Tobias Schiffer — Physikalisches Institut, Universität Bonn, Nußallee 12, 53115 Bonn

Gaseous detectors are used in many particle physics experiments and applications. Especially multipattern gaseous detectors like Micromegas are able to achieve high spatial resolution through their granularity. To make full use of this granularity one has to combine the highly granular gas amplification stage with a readout structure of similar feature size, e.g. a pixelized readout chip like the Timepix and Timepix3 ASICs. The Micromegas stage can be produced directly on top of the chip by means of photolithographic postprocessing technology which allows for an almost perfect alignment between grid holes and pixels. This integrated gas amplification stage is called InGrid.

One application for detectors based on the InGrid technology is the detection of low energy X-ray photons exploiting the capability to detect individual primary electrons. To be able to detect low energy X-ray photons this kind of detector needs to fulfill special requirements which will be discussed.

Meanwhile the first InGrids on top of Timepix3 ASICs, the successor of the Timepix ASIC, are available. For testing purposes a versatile test detector is constructed and will be presented.

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