The TWICE experiment originated from activities conducted under the previous project FACTOR (Fiber Apparatus for Calorimetry and Tracking with Optoelectronic Read-out), active from 2007 to 2010.
The experiment TWICE (Techniques for Wide-Range Instrumentation in Calorimetry Experiments), is a three-year project that aims to develop innovative
technologies (always based on the use of SiPMs as photodetectors) for active compensation calorimetry. The proposed goals include: the development of large area
SiPM with innovative technologies for the devices coating and protection, in order to make possible a crystal-SiPM contact interface; the design and production of a
dedicated ASIC (Application Specific Integrated Circuit) front-end; the assembly in a compact system of sensors and ASIC. Moreover, one of the goals of the TWICE
project is also to develop and study new materials (heavy scintillating glasses) sensitive to both the Cerenkov and the scintillation light; these materials are suitable for the use in total absorption, dual-readout calorimetry.
In 2011, the TWICE Collaboration includes 23 researchers belonging to 6 INFN Units: Trieste, Milano-Bicocca, Udine, Roma 1, Lecce and Messina.