Luoma, M. Blatz, T. Chokheli, D. Flemming, H. Garcia, F. Grahn, T. Götzen, K. Jokinen, A. Karagiannis, C. Kurz, N. Löchner, S. Nociforo, C. Rinta-Antila, S. Schmidt, C.J. Simon, H. Turpeinen, R. Voss, B. Wieczorek, P. Winkler, M. Äystö, J. JACoW Publishing Geneva, Switzerland 2673-5490 978-3-95450-227-1 10.18429/JACoW-IPAC2022-MOPOPT004 English 233-236 Contribution to a conference proceedings 2022 2022-07 https://doi.org/10.18429/JACoW-IPAC2022-MOPOPT004 https://jacow.org/ipac2022/papers/mopopt004.pdf The Facility for Antiproton and Ion Research FAIR, in Darmstadt Germany, will be one of the largest accelerator laboratories worldwide. The Superconducting FRagment Separator (Super-FRS)* is one of its main components. The Super-FRS can produce, separate and deliver high-energy radioactive beams with intensities up to 1e11 ions/s, covering projectiles from protons up to uranium and it can be used as an independent experimental device. The Gas Electron Multiplier-based Time Projection Chambers (GEM-TPC) in twin configuration is a newly developed beam tracking detector capable of providing spatial resolution of less than 1 mm with a tracking efficiency close to 100% at 1 MHz counting rate. The GEM-TPC (HGB4) was tested at the FRagment Separator (FRS), with 238U beam at 850 MeV/u. A new clusterization method was developed, for the first time and used for an analysis. This method allowed to access to waveforms of each strip signal within a single trigger in an event-by-event basis. The procedures involved in this method will be shown in details.