Prototype ATLAS IBL Modules using the FE-I4A Front-End Readout Chip

The ATLAS Collaboration will upgrade its semiconductor pixel tracking detector with a new Insertable B-layer (IBL) between the existing pixel detector and the vacuum pipe of the Large Hadron Collider. The extreme operating conditions at this location have necessitated the development of new radiation hard pixel sensor technologies and a new front-end readout chip, called the FE-I4. Planar pixel sensors and 3D pixel sensors have been investigated to equip this new pixel layer, and prototype modules using the FE-I4A have been fabricated and characterized using 120 GeV pions at the CERN SPS and 4 GeV positrons at DESY, before and after module irradiation. Beam test results are presented, including charge collection efficiency, tracking efficiency and charge sharing.Comment: 45 pages, 30 figures, submitted to JINS

Alpine Pixel Detector Layout

A description of an optimized layout of pixel sensors based on a stave that combines both barrel and endcap module orientations. The mechanical stiffness of the structure is provided by carbon fiber shells spaced by carbon foam. The cooling of the modules is provided by two-phase $CO_{2}$ flowing in a thin titanium pipe glued inside the carbon fiber foam. The electrical services of all modules are provided by a single stave flex. This layout eliminates the need for separate barrel and endcap detector structures, and therefore the barrel services material in front of the endcap. The transition from barrel to endcap module orientation is optimized separately for each layer in order to minimize the active pixel area and the traversed material. The sparse module spacing in the endcap part of the stave allows for multiple fixation points, and for a stiff overall structure composed only of staves interconnected by stiff disks

Species diversification – which species should we use?

Large detector systems for particle and astroparticle physics; Particle tracking detectors; Gaseous detectors; Calorimeters; Cherenkov detectors; Particle identification methods; Photon detectors for UV. visible and IR photons; Detector alignment and calibration methods; Detector cooling and thermo-stabilization; Detector design and construction technologies and materials. The LHCb experiment is dedicated to precision measurements of CP violation and rare decays of B hadrons at the Large Hadron Collider (LHC) at CERN (Geneva). The initial configuration and expected performance of the detector and associated systems. as established by test beam measurements and simulation studies. is described. © 2008 IOP Publishing Ltd and SISSA

The AMS-02 lead-scintillating fibres Electromagnetic Calorimeter

The Electromagnetic Calorimeter (ECAL) of the AMS-02 experiment is a fine grained lead-scintillating fibres sampling calorimeter that allows for a precise three-dimensional imaging of the longitudinal and lateral shower development. It provides a high (>= 10(6)) electron/hadron discrimination with the other AMS-02 detectors [1] and good energy resolution. The calorimeter also provides a standalone photon trigger capability to AMS-02. The mechanical assembly was realized to ensure minimum weight, still supporting the intrinsically heavy calorimeter during launch. ECAL light collection system and electronics are designed to measure electromagnetic particles over a wide energy range, from GeV up to TeV. A full-scale flight-like model was tested using electrons and proton beams with energies ranging from 6 to 250 GeV. (c) 2013 Elsevier B.V. All rights reserved

Technical Design Report for the ATLAS inner Tracker pixel detector

This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that time the LHC will have been upgraded to reach a peak instantaneous luminosity of "7.5\times 10$^{34}$ cm$^{-2}$s$^{-1}$", which corresponds to an average of about 200 inelastic proton-proton collisions per beam-crossing. The new Inner Tracker (ITk) will be operational for more than ten years, during which time ATLAS aims to accumulate a total data set of 4000 fb$^{-1}$. Many of the features of the tracker have already been presented in the first Technical Design Report that detailed the construction of the ITk Strip Tracker. That report was published in April 2017. This document focuses on the ITk Pixel Detector. A baseline design is described in detail, and the motivations for the chosen technologies are illustrated. In some cases, alternative solutions are also illustrated. In this case, we indicate the advantage in pursuing the other designs, and describe the time line for a decision. The design, construction and expected performance are set out in detail. When considering performance we pay particular attention to those parameters that are determined by the performance of the Pixel Detector. We describe in detail the design and construction of the Pixel Detector, including the results of measurements of prototype modules and associated support structures and we explain the status of the plans for their mass production. We present details of the decommissioning of the existing tracking detector and the replacement of the inner layers of the ITk Pixel Detector part way through the lifetime of the High Luminosity LHC. Finally, we describe the costing and schedule, including major milestones, to construct the detector

Technical Design Report for the ATLAS inner Tracker pixel detector

This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that time the LHC will have been upgraded to reach a peak instantaneous luminosity of "7.5\times 10$^{34}$ cm$^{-2}$s$^{-1}$", which corresponds to an average of about 200 inelastic proton-proton collisions per beam-crossing. The new Inner Tracker (ITk) will be operational for more than ten years, during which time ATLAS aims to accumulate a total data set of 4000 fb$^{-1}$. Many of the features of the tracker have already been presented in the first Technical Design Report that detailed the construction of the ITk Strip Tracker. That report was published in April 2017. This document focuses on the ITk Pixel Detector. A baseline design is described in detail, and the motivations for the chosen technologies are illustrated. In some cases, alternative solutions are also illustrated. In this case, we indicate the advantage in pursuing the other designs, and describe the time line for a decision. The design, construction and expected performance are set out in detail. When considering performance we pay particular attention to those parameters that are determined by the performance of the Pixel Detector. We describe in detail the design and construction of the Pixel Detector, including the results of measurements of prototype modules and associated support structures and we explain the status of the plans for their mass production. We present details of the decommissioning of the existing tracking detector and the replacement of the inner layers of the ITk Pixel Detector part way through the lifetime of the High Luminosity LHC. Finally, we describe the costing and schedule, including major milestones, to construct the detector

Technical Design Report for the ATLAS inner Tracker pixel detector

This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that time the LHC will have been upgraded to reach a peak instantaneous luminosity of "7.5\times 10$^{34}$ cm$^{-2}$s$^{-1}$", which corresponds to an average of about 200 inelastic proton-proton collisions per beam-crossing. The new Inner Tracker (ITk) will be operational for more than ten years, during which time ATLAS aims to accumulate a total data set of 4000 fb$^{-1}$. Many of the features of the tracker have already been presented in the first Technical Design Report that detailed the construction of the ITk Strip Tracker. That report was published in April 2017. This document focuses on the ITk Pixel Detector. A baseline design is described in detail, and the motivations for the chosen technologies are illustrated. In some cases, alternative solutions are also illustrated. In this case, we indicate the advantage in pursuing the other designs, and describe the time line for a decision. The design, construction and expected performance are set out in detail. When considering performance we pay particular attention to those parameters that are determined by the performance of the Pixel Detector. We describe in detail the design and construction of the Pixel Detector, including the results of measurements of prototype modules and associated support structures and we explain the status of the plans for their mass production. We present details of the decommissioning of the existing tracking detector and the replacement of the inner layers of the ITk Pixel Detector part way through the lifetime of the High Luminosity LHC. Finally, we describe the costing and schedule, including major milestones, to construct the detector

Technical Design Report for the ATLAS inner Tracker pixel detector

This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that time the LHC will have been upgraded to reach a peak instantaneous luminosity of "7.5\times 10$^{34}$ cm$^{-2}$s$^{-1}$", which corresponds to an average of about 200 inelastic proton-proton collisions per beam-crossing. The new Inner Tracker (ITk) will be operational for more than ten years, during which time ATLAS aims to accumulate a total data set of 4000 fb$^{-1}$. Many of the features of the tracker have already been presented in the first Technical Design Report that detailed the construction of the ITk Strip Tracker. That report was published in April 2017. This document focuses on the ITk Pixel Detector. A baseline design is described in detail, and the motivations for the chosen technologies are illustrated. In some cases, alternative solutions are also illustrated. In this case, we indicate the advantage in pursuing the other designs, and describe the time line for a decision. The design, construction and expected performance are set out in detail. When considering performance we pay particular attention to those parameters that are determined by the performance of the Pixel Detector. We describe in detail the design and construction of the Pixel Detector, including the results of measurements of prototype modules and associated support structures and we explain the status of the plans for their mass production. We present details of the decommissioning of the existing tracking detector and the replacement of the inner layers of the ITk Pixel Detector part way through the lifetime of the High Luminosity LHC. Finally, we describe the costing and schedule, including major milestones, to construct the detector

Technical Design Report for the ATLAS inner Tracker pixel detector

This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that time the LHC will have been upgraded to reach a peak instantaneous luminosity of "7.5\times 10$^{34}$ cm$^{-2}$s$^{-1}$", which corresponds to an average of about 200 inelastic proton-proton collisions per beam-crossing. The new Inner Tracker (ITk) will be operational for more than ten years, during which time ATLAS aims to accumulate a total data set of 4000 fb$^{-1}$. Many of the features of the tracker have already been presented in the first Technical Design Report that detailed the construction of the ITk Strip Tracker. That report was published in April 2017. This document focuses on the ITk Pixel Detector. A baseline design is described in detail, and the motivations for the chosen technologies are illustrated. In some cases, alternative solutions are also illustrated. In this case, we indicate the advantage in pursuing the other designs, and describe the time line for a decision. The design, construction and expected performance are set out in detail. When considering performance we pay particular attention to those parameters that are determined by the performance of the Pixel Detector. We describe in detail the design and construction of the Pixel Detector, including the results of measurements of prototype modules and associated support structures and we explain the status of the plans for their mass production. We present details of the decommissioning of the existing tracking detector and the replacement of the inner layers of the ITk Pixel Detector part way through the lifetime of the High Luminosity LHC. Finally, we describe the costing and schedule, including major milestones, to construct the detector