Conveners
Front-end electronics for LHC Upgrade
- Stefan Spanier
Front-end electronics for LHC Upgrade
- Stefan Spanier
Hybrid pixel detector readout continues to permit maximum flexibility when addressing the need for precise time tagging in high-rate environments as the detector topology and readout circuitry can be optimised independently for maximum performance. By setting the detection threshold well above the noise floor, noise hit free readout is possible and this, in turn, allows for trigger-free...
ITkPix and CROC are the culmination of more than 10 years of Front-End Chip R&D to produce a Pixel detector readout chip to operate within the extreme environment of the ATLAS and CMS Pixel detectors during the HL-LHC era. Now that the Pixel detectors have entered their production phase we can look back to identify what worked well, which challenges were the hardest to overcome, and what can...
Pixel modules for the ATLAS ITk Pixel detector upgrade are currently undergoing production and qualification testing. During pre-production electrical testing, a recurring front-end chip communication issue was observed that could be bypassed by selectively disabling pixel core columns within the affected chips. The issue, designated as the "core column issue," has been documented across a...
We report on an irradiation of the production version of the read-out-chip for the CMS HL-LHC pixel detector (CROC v2) to 1.6 Grad with $^{60}\rm{Co}$ $\gamma$s at Sandia National Lab. The CROC was kept powered, configured, and as close to its nominal operating temperature (-20$^o$ C) as much as possible during the irradiation. Internal chip voltages, pixel response, and diagnostic ring...
