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Electronics and Trigger developments for the Diffractive Physics Proposal at 220 m from LHC-ATLAS

Abstract : The instrumentation consists of two sets of Roman Pots installed respectively at 216 and 224m on both sides from the ATLAS IP to measure with precision the position (< 10 micrometers) and the timing (< 5ps) of the two back to back diffracted protons tracks. Each Roman Pot is equipped with several planes of Silicon strips detectors read out by a new version of the ATLAS Silicon tracker ABCD readout chip with a longer latency (6.4 microseconds) and fast OR outputs defining a track segment. Theses inputs are to be combined in time with the ATLAS level 1 trigger accept signal. In addition, these tracks are time filtered with a very fast timing detector (MCP-PMT) allowing to constraint further at the level 2 the position of the IP within a one millimetre precision., The description of the electronics and trigger system as well as the various technical issues associated with such challenging experiments (clocks, cabling,, time monitoring) will be presented.
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http://hal.in2p3.fr/in2p3-00187257
Contributor : Dominique Girod <>
Submitted on : Wednesday, November 14, 2007 - 9:59:53 AM
Last modification on : Friday, April 10, 2020 - 5:28:45 PM
Long-term archiving on: : Monday, April 12, 2010 - 2:08:34 AM

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  • HAL Id : in2p3-00187257, version 1

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P. Le Dû, J.-F. Genat, O. Kepka, A. Kupco, C. Royon, et al.. Electronics and Trigger developments for the Diffractive Physics Proposal at 220 m from LHC-ATLAS. Topical Workshop on Electronics for Particle Physics (TWEPP-07), Sep 2007, Prague, Czech Republic. ⟨in2p3-00187257⟩

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