22 research outputs found

    Construction, assembly and testing of the ATLAS hadronic end-cap calorimeter

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    The construction and assembly of the four wheels of the ATLAS hadronic end-cap calorimeter and their insertion into the two end-cap cryostats are described. The results of the qualification tests prior to installation of the two cryostats in the ATLAS experimental cavern are reviewed

    ATLAS detector and physics performance: Technical Design Report, 1

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    Design and performance of an integrated pulse generator for the LARG calibration system

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    The design and the results on the performance of an integrated version of the pulse generator of the liquid argon calibration system are presented. The pulse generator consists of a differential amplifier with automatic offset compensation, a current mirror and a switching logic. These components are integrated on an ASIC chip in CMOS technology. The chip has been tested in the laboratory and during testbeam measurements of the hadronic endcap calorimeter. In addition, the radiation hardness has been investigated under neutron irradiation at a nuclear power station

    Performance of the ATLAS Hadronic End-Cap Calorimeter in Beam Tests

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    Modules of the ATLAS liquid argon Hadronic End-cap calorimeter (HEC) were exposed to beams of electrons, muons and pions in the energy range 6GeV<E<200GeV at the CERN SPS. A description of the HEC and of the beam test setup are given. Results on the energy response and resolution are presented and compared with simulations. The ATLAS energy resolution for jets in the end-cap region is inferred and meets the ATLAS requirements
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