ion/fragment beam. A GEM-TPC detector, whose design combines two major concepts in modern gas-filled detectors, the Time Projection Chamber (TPC) and the Gas Electron Multiplication (GEM), is suggested as [...] 2011, 2012 and 2014 with relativistic ion beams [1]. The lastest has a twin configuration, i.e. two GEM-TPC detectors flipped (with the electric fields of the two field cages in opposite directions) in one [...] develped and tested with ion beams [2]. [1] F. Garcia et al., GSI Scientific Report (2014) p. 140. Twin GEM-TPC detector prototype (October 2014) NYXOR and DNF boards (July 2016) [2] F. Garcia et al., Nucl.