2023

Luoma, Minna; Garcia, F.; Äystö, Juha; Blatz, T. ; Chokheli, D.; Flemming, H.; Götzen, K.; Grahn, T.; Jokinen, Ari; Karagiannis, C.; Kurz, N.; Löchner, S.; Nociforo, C.; Rinta-Antila, S.; Schmidt, C.J.; Simon, H.; Turpeinen, Raimo; Voss, B.; Wieczorek, P.; Winkler, M.

As an essential part of the Super-FRS particle identification, the GEM-TPC detector in a twin field-cage configuration will provide position information at up to 1 MHz counting rate with a spatial resolution < 1 mm and with tracking efficiency >95 %. This detector is designed to provide particle-beam tracking information of projectiles ranging from protons to uranium. The performance of the GEM-TPC detector in a single field-cage configuration and newly integrated AWAGS readout electronics with a differential output was studied at the FRS for the response to the uranium beam at 850 MeV/u with intensity up to 1000 ions/spill. The result shows that a clusterization algorithm developed for this analysis works properly. The spatial resolution of 0.74–0.81 mm, a detection efficiency >99 %, and a tracking efficiency >96 % were found. This work describes the methodology used to achieve such results in detail.