Garfield++ simulations related to the ALICE TPC

This report has a double objective: • First: To validate and test some of the existing functions in the core of Garfield++; also to modify and add functionality when need arises. • Second: to simulate in Garfield++ (and other software interfaced to it) all parts needed to validate the behavior of the ALICE TPC, with a focus on the Multi-Wire Proportional Chambers (MWPC). The four main parts of the simulation include: I. Primary ionization (using the interface with the HEED software) II. Electron drift properties (using the interface with the Magboltz software) III. Amplification and Ion drift IV. Signal creation All parts are then integrated in a simulation of the whole chain from the primary ionization of the gas to the full signal induced on the electronics.