Ponente
Descripción
R3B is a scientific collaboration of FAIR working towards the realization of an apparatus, located at the end of the High-Energy Branch of this facility, that will received exotic isotopes of any chemical element from Hydrogen up to Uranium moving at energies around 1 A GeV.
R3B will allow us to explore the limits of the nuclear shell model, investigate exotic (barionic and strange) nuclear and to reproduce in the lab some relevant astrophysical scenarios as neutron stars.
One of the key detection systems of R3B is a pixel-based Target Recoil Tracker (TRT) that surrounds the target.
The main purpose of TRT is the detection (angle) of light charged particles (i.e. protons) that emerge following nuclear reactions of the beam particles with the R3B target. The precise angular reconstruction of TRT will enable a precise reaction-vertex reconstruction. Combined with the total kinetic energy measured by the R3B CALIFA calorimeter it will also allow the reconstruction of the missing-mass of the reaction under study.
TRT is based on the ultra-thin ALPIDE Monolithic Active Sensors (ALPIDE MAPS). Among the most relevant features of these sensors for nuclear physics are the small pixel size, the low material budget, high multiplicity capability and very good detection efficiency for MIPs.
In this talk we will present the state of progress of the project, the challenges of using this technology in nuclear physics experiments and the future steps to be taken.
