Integration of the End Cap TEC+ of the CMS Silicon Strip Tracker

The silicon strip tracker of the CMS experiment has been completed and inserted into the CMS detector in late 2007. The largest sub-system of the tracker is its end cap system, comprising two large end caps (TEC) each containing 3200 silicon strip modules. To ease construction, the end caps feature a modular design: groups of about 20 silicon modules are placed on sub-assemblies called petals and these self-contained elements are then mounted into the TEC support structures. Each end cap consists of 144 petals, and the insertion of these petals into the end cap structure is referred to as TEC integration. The two end caps were integrated independently in Aachen (TEC+) and at CERN (TEC--). This note deals with the integration of TEC+, describing procedures for end cap integration and for quality control during testing of integrated sections of the end cap and presenting results from the testing

Reception Test of Petals for the End Cap TEC+ of the CMS Silicon Strip Tracker

The silicon strip tracker of the CMS experiment has been completed and was inserted into the CMS detector in late 2007. The largest sub system of the tracker are its end caps, comprising two large end caps (TEC) each containing 3200 silicon strip modules. To ease construction, the end caps feature a modular design: groups of about 20 silicon modules are placed on sub-assemblies called petals and these self-contained elements are then mounted onto the TEC support structures. Each end cap consists of 144 such petals, which were built and fully qualified by several institutes across Europe. Fro

CMS physics technical design report : Addendum on high density QCD with heavy ions

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Vieilles chansons de Russie

Comprend : La steppe toujours la large steppe / Choeurs de l'Armée soviétique, dir. B. Alexandrov - Le village / Choeurs de l'Armée soviétique, dir. B. Alexandrov - Les bateliers de la Volga / Glazounov ; B. Gmiria (basse) ; Orch. du Grand Théâtre de Moscou, dir. V. Nebolssine - A l'orée du bois / Prokofiev ; N. Postavnitcheva, chant ; Ensemble vocal de la Radio, dir. A. Androucenko - Chemins / Novikov ; M. Reizen (basse) ; Choeurs de l'Armée soviétique, dir. B. Alexandrov - A l'aube / Krasnogliadov ; N. Postavnitcheva, chant ; Orch. d'instruments populaires de la Radio, dir. Stoliarov - Ma mignonne / I. Skobtsov (basse), A. Tchernov et K. Gregoriev (bayans) - La petite fraise jolie / Abramskoi ; E. Chouroupova, chant ; Choeur féminin de la Radio, dir. Koutouzov - La troika file / I. Skobtsov (basse) ; Orch. d'instruments populaires de la Radio, dir. Ossipov - Comme le rossignol / S. Lemechev, (ténor) ; Orch. d'instruments populaires de la Radio, dir.A. SemenovBnF-Partenariats, Collection sonore - BelieveContient une table des matière

Petal Integration for the CMS Tracker End Caps

This note describes the assembly and testing of the 292 petals built for the CMS Tracker End Caps from the beginning of 2005 until the summer of 2006. Due to the large number of petals to be assembled and the need to reach a throughput of 10 to 15 petals per week, a distributed integration approach was chosen. This integration was carried out by the following institutes: I. and III. Physikalisches Institut - RWTH Aachen University; IIHE, ULB \& VUB Universities, Brussels; Hamburg University; IEKP, Karlsruhe University; FYNU, Louvain University; IPN, Lyon University; and IPHC, Strasbourg University. Despite the large number of petals which needed to be reworked to cope with a late-discovered module issue, the quality of the petals is excellent with less than 0.2\% bad channels

The CMS experiment at the CERN LHC

The Compact Muon Solenoid (CMS) detector is described. The detector operates at the Large Hadron Collider (LHC) at CERN. It was conceived to study proton-proton (and lead-lead) collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 10(34)cm(-2)s(-1) (10(27)cm(-2)s(-1)). At the core of the CMS detector sits a high-magnetic-field and large-bore superconducting solenoid surrounding an all-silicon pixel and strip tracker, a lead-tungstate scintillating-crystals electromagnetic calorimeter, and a brass-scintillator sampling hadron calorimeter. The iron yoke of the flux-return is instrumented with four stations of muon detectors covering most of the 4 pi solid angle. Forward sampling calorimeters extend the pseudo-rapidity coverage to high values (vertical bar eta vertical bar <= 5) assuring very good hermeticity. The overall dimensions of the CMS detector are a length of 21.6 m, a diameter of 14.6 m and a total weight of 12500 t

The CMS experiment at the CERN LHC

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