Electronics and Trigger developments for the Diffractive Physics Proposal at 220 m from LHC-ATLAS

The instrumentation consists of two sets of Roman Pots installed respectively at 216 and 224m on both sides from the ATLAS IP to measure with precision the position (< 10 micrometers) and the timing (< 5ps) of the two back to back diffracted protons tracks. Each Roman Pot is equipped with several planes of Silicon strips detectors read out by a new version of the ATLAS Silicon tracker ABCD readout chip with a longer latency (6.4 microseconds) and fast OR outputs defining a track segment. Theses inputs are to be combined in time with the ATLAS level 1 trigger accept signal. In addition, these tracks are time filtered with a very fast timing detector (MCP-PMT) allowing to constraint further at the level 2 the position of the IP within a one millimetre precision., The description of the electronics and trigger system as well as the various technical issues associated with such challenging experiments (clocks, cabling,, time monitoring) will be presented

Development of integrated readout circuit in CMOS deep sub-micron techologies for silicon micor-strips detectors

Les détecteurs en silicium sont largement utilises en la Physique de Hautes Energies et representent une surface importante d'un grand detecteur. Ces détecteurs permettent d'obtenir une excellente résolution, aussi bien en position qu'en temps. Ce travail de thèse a consisté a développer un circuit intégré en technologie CMOS fortement sous-micronique (DSM) pour lire les détecteurs à micro-pistes de silicium. Ces circuits doivent équiper les trajectographes pour l'expérience ILC (Intenational Linear Collider). Le premier prototype a été conçu en technologie CMOS 180n en 2005 et comprend un integrateur a faible bruit, un circuit de mise en forme, et un échantillonneur-bloqueur. La disponibilité de la technologie UMC CMOS 130nm au début de l'année 2006 a permis de développer ensuite une autre version plus performante exploitant les spécificités de cette technologie plus fine, et de renforcer l'efficacité du circuit par l'adjonction de nouvelles fonctionnalités. Ce dernier comprend un intégrateur, un circuit de mise en forme, une suppression des voies non touchées opérant sur la somme de trois voies adjacentes et fournissant un signal de déclenchement, une mémoire analogique d'un profondeur de huit périodes d horloge, et un convertisseur analogique/numérique parallèle. Les circuits sont d'abord testés sur table pour confirmer les fonctionnalités et déterminer les caractéristiques électroniques. Les circuits ont d'abord été testés sur table pour confirmer leur fonctionnalité, et leurs caractéristiques détaillées ont été mesurées.Ils ont été ensuite connectés aux détecteurs et testés avec une diode laser et un source radioactive (90Sr) délivrant des signaux comparables aux particules ionisantes. Enfin, un système complet a été entièrement testé auprès d'une source de particules réelle au CERN. Les résultats de ces divers tests Le choix de la technologie et de l'architecture du circuit sont ainsi validés par ces tests.PARIS-BIUSJ-Physique recherche (751052113) / SudocSudocFranceF

A 16-channel Silicon Strips Readout Chip in 180nm CMOS technology

Electronic Conference Proceedings (eConf)A highly integrated readout scheme for Silicon trackers making use of Deep Sub-Micron CMOS electronics (DSM) and analog sampling techniques is presented. In the context of the International Linear Collider (ILC) tracking detectors developments, a 16-channel readout chip for Silicon strips detector has been designed in 180nm CMOS technology, each channel comprising a low noise amplifier, a pulse shaper, a sample and hold and a comparator operated at low power. Test results are presented

ILC Reference Design Report Volume 1 - Executive Summary

The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2s^-1. This report is the Executive Summary (Volume I) of the four volume Reference Design Report. It gives an overview of the physics at the ILC, the accelerator design and value estimate, the detector concepts, and the next steps towards project realization.The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2s^-1. This report is the Executive Summary (Volume I) of the four volume Reference Design Report. It gives an overview of the physics at the ILC, the accelerator design and value estimate, the detector concepts, and the next steps towards project realization

ILC Reference Design Report Volume 4 - Detectors

This report, Volume IV of the International Linear Collider Reference Design Report, describes the detectors which will record and measure the charged and neutral particles produced in the ILC's high energy e+e- collisions. The physics of the ILC, and the environment of the machine-detector interface, pose new challenges for detector design. Several conceptual designs for the detector promise the needed performance, and ongoing detector R&D is addressing the outstanding technological issues. Two such detectors, operating in push-pull mode, perfectly instrument the ILC interaction region, and access the full potential of ILC physics.This report, Volume IV of the International Linear Collider Reference Design Report, describes the detectors which will record and measure the charged and neutral particles produced in the ILC's high energy e+e- collisions. The physics of the ILC, and the environment of the machine-detector interface, pose new challenges for detector design. Several conceptual designs for the detector promise the needed performance, and ongoing detector R&D is addressing the outstanding technological issues. Two such detectors, operating in push-pull mode, perfectly instrument the ILC interaction region, and access the full potential of ILC physics

ILC Reference Design Report Volume 3 - Accelerator

The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2 s^-1. The complex includes a polarized electron source, an undulator-based positron source, two 6.7 km circumference damping rings, two-stage bunch compressors, two 11 km long main linacs and a 4.5 km long beam delivery system. This report is Volume III (Accelerator) of the four volume Reference Design Report, which describes the design and cost of the ILC.The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2 s^-1. The complex includes a polarized electron source, an undulator-based positron source, two 6.7 km circumference damping rings, two-stage bunch compressors, two 11 km long main linacs and a 4.5 km long beam delivery system. This report is Volume III (Accelerator) of the four volume Reference Design Report, which describes the design and cost of the ILC

International Linear Collider Reference Design Report Volume 2: PHYSICS AT THE ILC

This article reviews the physics case for the ILC. Baseline running at 500 GeV as well as possible upgrades and options are discussed. The opportunities on Standard Model physics, Higgs physics, Supersymmetry and alternative theories beyond the Standard Model are described.This article reviews the physics case for the ILC. Baseline running at 500 GeV as well as possible upgrades and options are discussed. The opportunities on Standard Model physics, Higgs physics, Supersymmetry and alternative theories beyond the Standard Model are described