Speaker
Maria Manna
(Centro National de Microelectronica - CNM-IMB-CSIC)
Description
The HL-LHC is expected to reach luminosities of up to 3000 fb−1; the upgrade of innermost tracking detectors of the ATLAS experiment foresees a decrease in pixel size in order to enhance the positional resolution. In this talk, the collected charge characterisation of different pixel size geometry will be presented. Following irradiation, sensors with 50μm×50μm pixel size show higher charge collection efficiency than 100 μm×25 μm (1E), due to the smaller distance between the electrodes. The latter implies a shorter drift distance and a lower trapping probability of the generated electron-hole pairs.
