ATLAS High-Granularity Timing Detector (HGTD) milestone achieved: ALTIROC2 ASIC submitted

The ALTIROC2 ASIC for the ATLAS High-Granularity Timing Detector (HGTD) has been submitted. This is a major milestone of the HGTD project.

The ALTIROC2 is a 2x2 cm2, full functionality ASIC to read out the LGAD sensors and provide the required 30-50ps time resolution per hit.R. Casanova led the digital design and the verification effort.

IFAE will be working on the development of a readout system for the chip tests and the hybridization effort (to LGAD sensors). The next version of the chip is planned for the end of the year.

Latest Group News


ATLAS Run 3 start in full swing

June 8, 2022

Last week the the LHC delivered a total of 5 fills with 900 GeV collisions (stable beams were declared during 4 fills). In total, approximately 23 hours of stable beams at injection energy were delivered to ATLAS.


ATLAS Upgrades Status

June 1, 2022

The Final Design Reviews for the LGAD sensors for the High Granularity Timing Detector (HGTD) and for the ITk Pixel modules are ongoing.

New Member

New Member in the ATLAS Pixels group

May 26, 2022

Yujing Gan has just joined the ATLAS Pixels group as a PhD student. She got her bachelor degree in the Central China Normal University (CCNU).