Development and test of the DAQ system for a Micromegas prototype to be installed in the ATLAS experiment

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Bianco, M.^1 ; Martoiu, S.^2 ; Sidiropoulou, O.^1,3 ; Zibell, A.^3

CERN, Meyrin Road 385, Meyrin

1217, Switzerland^1

IFIN-HH, Strada Reactorului 30, Magurele, Romania^2

University of Würzburg, Emil-Hilb-Weg 22, Würzburg

97074, Germany^3

关键词: ATLAS experiment;    Bunch crossing clocks;    Central trigger processors;    Data acquisition system;    Hardware and software;    Prototype detector;    Read out drivers;    Run control system;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/8/082056/pdf
DOI  :  10.1088/1742-6596/664/8/082056

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A Micromegas (MM) quadruplet prototype with an active area of 0.5 m2that adopts the general design foreseen for the upgrade of the innermost forward muon tracking systems (Small Wheels) of the ATLAS detector in 2018-2019, has been built at CERN and is going to be tested in the ATLAS cavern environment during the LHC RUN-II period 2015-2017. The integration of this prototype detector into the ATLAS data acquisition system using custom ATCA equipment is presented. An ATLAS compatible Read Out Driver (ROD) based on the Scalable Readout System (SRS), the Scalable Readout Unit (SRU), will be used in order to transmit the data after generating valid event fragments to the high-level Read Out System (ROS). The SRU will be synchronized with the LHC bunch crossing clock (40.08 MHz) and will receive the Level-1 trigger signals from the Central Trigger Processor (CTP) through the TTCrx receiver ASIC. The configuration of the system will be driven directly from the ATLAS Run Control System. By using the ATLAS TDAQ Software, a dedicated Micromegas segment has been implemented, in order to include the detector inside the main ATLAS DAQ partition. A full set of tests, on the hardware and software aspects, is presented.