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Conception et réalisation de l'électronique frontale du détecteur de pied de gerbe et de l'unité de décision du système du premier niveau de déclenchement de l'expérience LHCb

Abstract : Particle physics experiments associated to the LHC will manage a collision every 25 ns. A dramatic amount of data will be produced for hundreds thousand of measurement channels.
The decision unit of the LHCb experiment aims to perform a first selection of interesting events. A prototype was developed. It is based on a fully synchronous pipelined fpga architecture and comes with a dedicated test bench which provides up to 512 LVDS test vectors at a frequency of 40 MHz.
The preshower, made up of 6000 cells, is a part of the calorimetric system. First the signal is integrated during 25 ns periods without any dead time on an ASIC. After a 20 m long cable, the output signal is digitised and processed on one hundred front-end boards.
The design of the data processing part prototypes has led us to take into account some stringent constraints (number of channels, radiation hardness). A programmable technology and an ASIC (AMS 0,35 µm) have been put into competition.
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https://tel.archives-ouvertes.fr/tel-00001997
Contributor : Admin Base Des Publications de l'In2p3 <>
Submitted on : Thursday, November 21, 2002 - 3:42:31 PM
Last modification on : Thursday, February 25, 2021 - 10:58:19 AM
Long-term archiving on: : Friday, April 2, 2010 - 6:35:54 PM

Identifiers

  • HAL Id : tel-00001997, version 1

Citation

Rémi Cornat. Conception et réalisation de l'électronique frontale du détecteur de pied de gerbe et de l'unité de décision du système du premier niveau de déclenchement de l'expérience LHCb. Physique des Hautes Energies - Expérience [hep-ex]. Université Blaise Pascal - Clermont-Ferrand II, 2002. Français. ⟨tel-00001997⟩

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