Feb 15 – 19, 2016
Vienna University of Technology
Europe/Vienna timezone

GridPix detector - Development and Application

Feb 18, 2016, 9:00 AM
20m
EI9 (Vienna University of Technology)

EI9

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Talk Gaseous Detectors Gas Detectors

Speaker

Jochen Kaminski (Universitaet Bonn (DE))

Description

The GridPix detectors are an interesting new technology which combine a highly granular readout structure implemented by the pixelized Timepix ASIC with a Micromegas mesh. The mesh is produced by photolithographic processing techniques and each mesh hole is aligned with one readout pixel. This allows for detecting single primary electrons with high detection efficiency. Both energy and spatial resolution profit from resolving the structure of tracks or X-ray conversions. We have developed a wafer-based production of GridPix detectors and a scalable readout system allowing the construction and simultaneous operation of a large number of GridPixes in a complete experimental setup. Several application will be presented: A test beam with a large volume TPC at DESY has demonstrated the smooth operation of 160 GridPix detectors recording tracks of up to 50 cm length. Another application which will be covered in this presentation is the good X-ray energy resolution of about 3.85 %, which is important for low-rate experiments such as solar axion searches. Finally also tests of a GridPix based transition radiation detector in a magnetic field will be presented.

Primary author

Jochen Kaminski (Universitaet Bonn (DE))

Co-authors

Christoph Krieger (Universitaet Bonn (DE)) Klaus Desch (Universitaet Bonn (DE)) Michael Lupberger (University of Bonn) Yevgen Bilevych (University of Bonn)

Presentation materials