Author Description

Intro -- Contents -- Foreword -- 1. Towards the ATLAS Letter of Intent -- 1.1 The early historical context -- 1.2 The physics case for the LHC: A brief history -- 1.3 The LHC design and its early evolution -- 1.4 Early ideas about instrumentation and detector requirements -- 1.5 Research and development (R& -- D) to meet the LHC challenges -- 1.6 Proto-collaborations for the Evian meeting -- 1.7 Merging of toroid concepts, the ATLAS Letter of Intent -- ATLAS first data taking -- 2. The ATLAS Detector Today -- 2.1 The ATLAS detector layout -- 2.2 The ATLAS magnet system -- 2.3 The Muon Spectrometer -- 2.4 The calorimeters -- 2.5 The Inner Detector -- 2.6 The forward detectors -- 2.7 The trigger and data-acquisition system -- ATLAS operations today and acting on the unforeseen -- Interactions with the LHC and with the other experiments -- 3. Building up the Collaboration -- 3.1 The initial years and the global international context -- 3.2 Reaching out to the world -- 3.3 The ATLAS organisation -- It's a PROC's life. . . -- Data quality as seen by the liquid argon team -- 4. From the LoI to the Detector Construction -- 4.1 Early technology decisions -- 4.2 The example of the toroid magnet technology choice -- 4.3 Descoping to meet the CORE budget -- 4.4 The Technical Design Reports -- 4.5 CORE costs, overcosts and costs to completion -- 4.6 Sharing the operation costs -- Luminosity and a van der Meer scan -- From data to big data in ATLAS -- 5. Detector Construction Around the World -- 5.1 The magnet system -- 5.2 The Inner Detector and its subsystems -- 5.2.1 The Pixel Detector -- 5.2.2 The SemiConductor Tracker (SCT) -- 5.2.3 The Transition Radiation Tracker (TRT) -- 5.3 The LAr accordion electromagnetic calorimetry -- 5.3.1 Common procurements from industry -- 5.3.2 Construction of the modules -- 5.3.3 Assembly at CERN.