GridPIX TPC as a compact PID and Tracking device

GridPix detectors exploits highly pixelated readout ASIC and a Micromegas style gas amplification stage. Because of the aligned mesh holes and pixels, a high efficiency for detecting and separating single primary electrons can be achieved. This leads to excellent spatial and energy resolution which can be used as a readout for Time projection chambers (TPC). Traditional TPCs have high material budget at the endplates because of cooling and support structures. Particularly, in case of e+p/A collisions, it is desirable to reduce the material budget at the readout end in the hadron going direction, the electron going direction is a thin low material cathode already. However, the heat load of GridPIX chips is not negligible, which poses challenges to cool the electronics while maintaining the low material budget. In this talk, I will discuss ongoing R&D and future plans towards the reduction of material budget and cooling schemes with the GridPix TPC.