PoS - Proceedings of Science
Volume 343 - Topical Workshop on Electronics for Particle Physics (TWEPP2018) - Systems, Planning, Installation, Commissioning and Running Experience
The Proton Timing System of the TOTEM experiment at LHC
E. Bossini* and  On behalf of the TOTEM Collaboration
Full text: pdf
Pre-published on: May 21, 2019
Published on: July 25, 2019
The TOTEM experiment has developed a new timing detector to be used during a special LHCrun. The new proton timing detector, based on Ultrafast Silicon Detectors, is installed in theTOTEM Roman Pots, at 220 meters from the interaction point 5 at LHC. The sensors are readoutthrough a fast sampler chip: the SAMPIC. With a sampler, it is possible to record the detectorwaveforms so that sophisticated offline algorithms can be used to achieve the best timing perfor-mance. A new board has been designed to integrate the chip in the TOTEM and CMS DAQ andcontrol systems. The core component of the board is a radiation hard FPGA, with a dedicatedfirmware designed to configure the SAMPIC and assemble the DAQ data frame event. The sys-tem was successfully operated during the run in July 2018. The detector will be described and thepreliminary results discussed.
DOI: https://doi.org/10.22323/1.343.0137
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