The ionisation electrons drift from the cathode to the sides of the TPC, where they are detected by the MicroMegas providing a 3D image of a path of the traversing charged particle. Y and Z coordinates are based on the position of the detected ionisation electrons on the MicroMegas modules, and X coordinate is based on the electrons drift time.
The ionization electrons move from the cathode to the sides of the TPC, where they are detected by MicroMegas, creating a 3D image of a particle's path. The Y and Z coordinates are determined by the position of the detected ionization electrons on the MicroMegas modules, while the X coordinate is based on the electron drift time.