The Atlas Trigger System has been designed to reduce the LHC interaction rate of about 1 GHz to the foreseen storage rate of about 100 Hz. Three trigger levels are applied in order to fulfill such a requirement. A detailed simulation of the ATLAS experiment including the hardware components and the logic of the Level-1 Muon trigger in the barrel of the muon spectrometer has been performed. This simulation has been used not only to evaluate the performances of the system but also to optimize the trigger logic design. In the barrel of the muon spectrometer the trigger will be given by means of resistive plate chambers (RPCs) working in avalanche mode. Before being mounted on the experiment, accurate quality tests with cosmic rays are carried out on each RPC chamber using the test station facility of the INFN and University laboratory of Napoli. All working parameters are measured and the uniformity of the efficiency on the whole RPC surface is required. A summary of the Napoli cosmic rays tests, together with a brief description of the Atlas Trigger, in particular of the Level-1 Muon Trigger in the barrel, and the results of the trigger simulation will be given.

Aielli, G., Aloisio, A., Alviggi, M., Biglietti, M., Bocci, V., Brambilla, E., et al. (2004). The RPC LVL1 Trigger System of the Muon spectrometer of the ATLAS experiment at LHC. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 51(4, Part 1), 1581-1589 [10.1109/TNS.2004.832931].

The RPC LVL1 Trigger System of the Muon spectrometer of the ATLAS experiment at LHC

AIELLI, GIULIO;CAMARRI, PAOLO;DI CIACCIO, ANNA;SANTONICO, RINALDO;
2004-01-01

Abstract

The Atlas Trigger System has been designed to reduce the LHC interaction rate of about 1 GHz to the foreseen storage rate of about 100 Hz. Three trigger levels are applied in order to fulfill such a requirement. A detailed simulation of the ATLAS experiment including the hardware components and the logic of the Level-1 Muon trigger in the barrel of the muon spectrometer has been performed. This simulation has been used not only to evaluate the performances of the system but also to optimize the trigger logic design. In the barrel of the muon spectrometer the trigger will be given by means of resistive plate chambers (RPCs) working in avalanche mode. Before being mounted on the experiment, accurate quality tests with cosmic rays are carried out on each RPC chamber using the test station facility of the INFN and University laboratory of Napoli. All working parameters are measured and the uniformity of the efficiency on the whole RPC surface is required. A summary of the Napoli cosmic rays tests, together with a brief description of the Atlas Trigger, in particular of the Level-1 Muon Trigger in the barrel, and the results of the trigger simulation will be given.
2004
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/01 - FISICA SPERIMENTALE
English
Con Impact Factor ISI
Argon; Calorimeters; Computer simulation; Cosmic rays; Electric fields; Electromagnetism; Hardware; Ionization; Mathematical models; Parameter estimation; Spectrometers; ATLAS; LHC; Muons; Resistive plate chamber (RPC); Colliding beam accelerators
Aielli, G., Aloisio, A., Alviggi, M., Biglietti, M., Bocci, V., Brambilla, E., et al. (2004). The RPC LVL1 Trigger System of the Muon spectrometer of the ATLAS experiment at LHC. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 51(4, Part 1), 1581-1589 [10.1109/TNS.2004.832931].
Aielli, G; Aloisio, A; Alviggi, M; Biglietti, M; Bocci, V; Brambilla, E; Camarri, P; Canale, V; Caprio, M; Cardarelli, R; Carlino, G; Cataldi, G; Chio...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/33129
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