1–6 Jul 2013
Paraninfo buidling, Zaragoza, Spain
Europe/Zurich timezone

Triple‐GEM multi‐module measurements in large TPC prototype

3 Jul 2013, 16:45
1h 10m
poster room (University Paraninfo)

poster room

University Paraninfo

Speaker

Astrid Muennich (DESY)

Description

A Time Projection Chamber (TPC) using micro-pattern gas detectors is planned as the tracking device for the next linear collider. A novel support structure for GEMs, which minimizes the material and improves the flatness of the foils, has been developed and tested with multiple GEM modules in a large TPC prototype at DESY. Reducing dead material at the GEM module boundaries improves the field homogeneity. In addition, a field shaping ring at the border of the module was installed to improve charge collection in regions with nonhomogeneous fields. A successful test beam campaign with 3 modules has been carried out. First results regarding resolution and field distortions will be presented.

Presentation materials