Operation and calibration of the Silicon Drift Detectors of the ALICE experiment during the 2008 cosmic ray data taking period

The calibration and performance of the Silicon Drift Detector of the ALICE experiment during the 2008 cosmic ray run will be presented. In particular the procedures to monitor the running parameters (baselines, noise, drift speed) are detailed. Other relevant parameters (SOP delay, time-zero, charge calibration) were also determined

Alice Silicon Strip Detector Module Assembly with Single-Point TAB Interconnections

35nonenoneM.OINONEN; J.AALTONEN; I.KASSAMAKOV; S.NIKKINEN; Z.RADIVOJEVIC; H.SEPPÄNEN; M.ÖSTERBERG; V.BORSHCHOV; A.LISTRATENKO; V.ANTONOVA; I.TYMCHUK; M.PROTSENKO; J.KOSTYSHIN; G.ZINOVJEV; A.P.DE HAAS; P.G.KUIJER; G.J.L.NOOREN; C.J.OSKAMP; A.N.SOKOLOV; A.VAN DEN BRINK; F. AGNESE; D.BONNET; O.CLAUSSE; M.IMHOFF; C.KUHN; J.R.LUTZ; M.H.SIGWARD; M.BREGANT; L.BOSISIO; P.CAMERINI; G.CONTIN; N.GRION; F.FALESCHINI; MARGAGLIOTTI G.V.; O.BORYSOVOinonen, M.; Aaltonen, J.; Kassamakov, I.; Nikkinen, S.; Radivojevic, Z.; Seppänen, H.; Österberg, M.; Borshchov, V.; Listratenko, A.; Antonova, V.; Tymchuk, I.; Protsenko, M.; Kostyshin, J.; Zinovjev, G.; DE HAAS, A. P.; Kuijer, P. G.; Nooren, G. J. L.; Oskamp, C. J.; Sokolov, A. N.; VAN DEN BRINK, A.; Agnese, F.; Bonnet, D.; Clausse, O.; Imhoff, M.; Kuhn, C.; Lutz, J. R.; Sigward, M. H.; Bregant, M.; Bosisio, L.; Camerini, Paolo; Contin, G.; Grion, N.; Faleschini, F.; Margagliotti, Giacomo; Borysov, O

The ALICE vertex detector: Focus on the micro-strip layers

The ALICE microstrip detector of the Inner Tracking Syste

The ALICE vertex detector: Focus on the micro-strip layers

The ALICE experiment, which is being installed at the Large Hadron Collider at CERN, is designed to operate in a high-track density environment which is typical of relativistic heavy ions physics. This paper reports the main characteristics of the Inner Tracking System (ITS) of ALICE and describes the Silicon Strip Detector, which forms the two outermost layers of the IT

Assembly and validation of the ALICE silicon microstrip detector

The two outermost layers of the ALICE Inner Tracking System consist of 1698 double-sided silicon microstrip modules, which form the Silicon Strip Detector (SSD). The SSD modules offer several novelties, which include the use of TAB-bonding technique for the connection of the front-end electronic via thin aluminium-polyimide cables. The module as well as its parts will be described and the assembling procedure illustrated

Technical Design Report for the Upgrade of the ALICE Inner Tracking System

ALICE (A Large Ion Collider Experiment) is studying the physics of strongly interacting matter, and in particular the properties of the Quark–Gluon Plasma (QGP), using proton–proton, proton–nucleus and nucleus–nucleus collisions at the CERN LHC (Large Hadron Collider). The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown in the years 2018–2019. A key element of the ALICE upgrade is the construction of a new, ultra-light, high-resolution Inner Tracking System (ITS) based on monolithic CMOS pixel detectors. The primary focus of the ITS upgrade is on improving the performance for detection of heavy-flavour hadrons, and of thermal photons and low-mass di-electrons emitted by the QGP. With respect to the current detector, the new Inner Tracking System will significantly enhance the determination of the distance of closest approach to the primary vertex, the tracking efficiency at low transverse momenta, and the read-out rate capabilities. This will be obtained by seven concentric detector layers based on a 50 μm thick CMOS pixel sensor with a pixel pitch of about 30×30 μm2. This document, submitted to the LHCC (LHC experiments Committee) in September 2013, presents the design goals, a summary of the R&D activities, with focus on the technical implementation of the main detector components, and the projected detector and physics performance

Technical Design Report for the Upgrade of the ALICE Inner Tracking System

ALICE (A Large Ion Collider Experiment) is studying the physics of strongly interacting matter, and in particular the properties of the Quark–Gluon Plasma (QGP), using proton–proton, proton–nucleus and nucleus–nucleus collisions at the CERN LHC (Large Hadron Collider). The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown in the years 2018–2019. A key element of the ALICE upgrade is the construction of a new, ultra-light, high-resolution Inner Tracking System (ITS) based on monolithic CMOS pixel detectors. The primary focus of the ITS upgrade is on improving the performance for detection of heavy-flavour hadrons, and of thermal photons and low-mass di-electrons emitted by the QGP. With respect to the current detector, the new Inner Tracking System will significantly enhance the determination of the distance of closest approach to the primary vertex, the tracking efficiency at low transverse momenta, and the read-out rate capabilities. This will be obtained by seven concentric detector layers based on a 50 μm thick CMOS pixel sensor with a pixel pitch of about 30×30 μm2. This document, submitted to the LHCC (LHC experiments Committee) in September 2013, presents the design goals, a summary of the R&D activities, with focus on the technical implementation of the main detector components, and the projected detector and physics performance.peerReviewe

Upgrade of the ALICE Experiment: Letter of Intent

The long term goal of the ALICE experiment is to provide a precise characterization of the high-density, high-temperature phase of strongly interacting matter. To achieve this goal, high-statistics precision measurement are required. The general upgrade strategy for the ALICE detector is conceived to deal with this challenge with expected Pb-Pb interaction rates of up to 50 kHz aiming at an integrated luminosity of the order of 10 nb^-1. With the proposed timeline, starting the high-rate operation progressively after 2018 shutdown, the goals set up in our upgrade plans should be achieved collecting data until mid-2020's. In this document we present the main physics motivations for running the LHC with heavy ions at high luminosities and discuss the modifications and replacements needed in the ALICE detectors, the online systems and offline system. The schedule, cost estimate and organization of the upgrade programme are presented as well.ALICE (A Large Ion Collider Experiment) is studying the physics of strongly interacting matter, and in particular the properties of the Quark–Gluon Plasma (QGP), using proton–proton, proton–nucleus and nucleus–nucleus collisions at the CERN LHC (Large Hadron Collider). The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown in the years 2018–2019. These plans are presented in the ALICE Upgrade Letter of Intent, submitted to the LHCC (LHC experiments Committee) in September 2012. In order to fully exploit the physics reach of the LHC in this field, high-precision measurements of the heavy-flavour production, quarkonia, direct real and virtual photons, and jets are necessary. This will be achieved by an increase of the LHC Pb–Pb instant luminosity up to 6×1027 cm−2s−1 and running the ALICE detector with the continuous readout at the 50 kHz event rate. The physics performance accessible with the upgraded detector, together with the main detector modifications, are presented