The HL-LHC presents unprecedented challenges and timing information is expected to play a key role in mitigating the impact of pile-up in both ATLAS (HGTD) and CMS (MTD-ETL). However, yield and stability after heavy irradiation remain a concern. The presented results are the results of the main part of the second big experimental campaign on LGAD fatalities and its irreversible breakdown after...
Aside from the SPA mortality studies, the first attempts with the TPA mechanism have been performed. In particular, the stability and mortality of the system were monitored with well localized TPA generation of charge in different depths of the device (Z – direction). The first results suggest that the stability of the devices varies rather weakly as long as the charge is generated inside the...
LGAD sensors will be employed in the CMS MTD and ATLAS HGTD upgrades to mitigate the high levels of pileup expected in the High Luminosity phase of the LHC. Over the last several years, much attention has focused on designing radiation tolerant gain implants to ensure these sensors survive the fluences expected, in excess of 1-2 x 10^15 neq/cm^2. As verified with beta source measurements, the...
