Conceptual design of a large area time-of-flight wall for the R3B experiment at FAIR

We present the conceptual design of a large-area time-of-flight wall for relativistic heavy ion identification at the R3B experiment at FAIR. The main requirements of this detector are a time resolution better than 50 ps (FWHM), a large surface in order to cover the full angular range and a sufficient granularity to identify multi-fragment events. To achieve these requirements we propose a pioneering solution based on the use of multi-gap resistive plate chambers.