Search results for "lider"
showing 10 items of 1757 documents
MuPix and ATLASPix -- Architectures and Results
2020
High Voltage Monolithic Active Pixel Sensors (HV-MAPS) are based on a commercial High Voltage CMOS process and collect charge by drift inside a reversely biased diode. HV-MAPS represent a promising technology for future pixel tracking detectors. Two recent developments are presented. The MuPix has a continuous readout and is being developed for the Mu3e experiment whereas the ATLASPix is being developed for LHC applications with a triggered readout. Both variants have a fully monolithic design including state machines, clock circuitries and serial drivers. Several prototypes and design variants were characterised in the lab and in testbeam campaigns to measure efficiencies, noise, time reso…
Upgrade of ALICE forward detectors
2019
ALICE will upgrade its subsystems in 2019−2020 to fully benefit from the increased collision rate and luminosity of the LHC at CERN. Two new forward detectors will be installed at the core of ALICE: the Fast Interaction Trigger (FIT) and the Muon Forward Tracker (MFT). Additionally, during the shutdown between Run 3 and Run 4, there will be an opportunity to install the Forward Calorimeter (FoCal). This paper describes these new forward detectors, their physics justification and goals, selected design features along with performance of detector prototypes and simulated performance figures. peerReviewed
Ultrascale+ for the new ATLAS calorimeter trigger board dedicated to jet identification
2018
To cope with the expected increase in luminosity at the Large Hadron Collider in 2021, the ATLAS collaboration is planning a major detector upgrade to be installed during Long Shutdown 2. As a part of this, the Level 1 trigger, based on calorimeter data, will be upgraded to exploit the fine granularity readout using a new system of Feature EXtractors (FEXs), which each reconstruct different physics objects for the trigger selection. The Jet FEX (jFEX) is one of three FEXs and has been conceived to identify small/large area jets, large area tau leptons, missing transverse energy and the total sum of the transverse energy. The use of the latest generation Xilinx Field Programmable Gate Array …
Analysis of the ATLAS Rome Production Experience on the LHC Computing Grid
2006
The Large Hadron Collider at CERN will start data acquisition in 2007. The ATLAS (A Toroidal LHC Apparatus) experiment is preparing for the data handling and analysis via a series of Data Challenges and production exercises to validate its computing model and to provide useful samples of data for detector and physics studies. The last Data Challenge, begun in June 2004 and ended in early 2005, was the first performed completely in a Grid environment. Immediately afterwards, a new production activity was necessary in order to provide the event samples for the ATLAS physics workshop, taking place in June 2005 in Rome. This exercise offered a unique opportunity to estimate the reached improvem…
The Inchworm as a precision translator in a high magnetic field and UHV environment
1989
Abstract A new set-up has been designed and tested for on-line, high-precision mass measurements of short-lived radioactive isotopes via a determination of the ion cyclotron resonance. Ions delivered by the on-line isotope separator ISOLDE at CERN/Geneva are stored in a Penning trap installed in a superconducting solenoid. Due to severe space limitations in the bore of the solenoid, it is impossible to use conventional mechanical feedthroughs for the necessary manipulations inside the uhv chamber. Instead, a number of Inchworms, a high-precision positioning device based on the piezo-electric effect are employed. This publication reports on the first application of this device in a uhv envir…
Upgrade of the ATLAS Central Trigger for LHC Run-2
2015
The increased energy and luminosity of the LHC in the run-2 data taking period requires a more selective trigger menu in order to satisfy the physics goals of ATLAS. Therefore the electronics of the central trigger system is upgraded to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been redesigned to allow the CTP to accommodate three freely configurable and separately operating sets of sub detectors, each independently using the almost full functionality of the trigger hardware. This new approach and its operational advantages are discussed as well as the hardware upgrades.
The ATLAS Simulation Infrastructure
2010
52 páginas, 10 figuras, 18 tablas.-- This article is distributed under the terms of the Creative Commons Attribution Noncommercial License.-- et al. (The ATLAS Collaboration).
Un nou enfocament en el lideratge del segle XXI
2012
La noció segons la qual algunes persones poden ser primus inter pares (primer/a entre iguals) és potser el pilar fonamental de la nostra societat actual. La pregunta sobre qui hauria de ser el primer ha estat font de curiositat i inspiració per a religions, filòsofs i artistes. Malgrat això, la veritable pregunta no és tan sols qui ha de ser el primer, sinó també quines qualitats, valors o creences permeten que algú es destaque sobre els altres per guiar-los. En aquest treball desenvolupem teòricament certes característiques dels líders i de les organitzacions i l'impacte que tenen en la salut psicològica dels individus, i tot seguit presentem alternatives teòriques en funció dels avanços e…
La dirección orquestal y su dimensión social: hacia la inclusión de la mujer
2022
Por influencia de las teorías freudianas suele decirse que, en el contexto de una orquesta, la batuta representa la virilidad, al ser un elemento usado única y exclusivamente por quien ostenta el liderazgo de aquella. El director, batuta en mano, se transforma en un mediador entre el conjunto musical, la obra y el público. Sin embargo, esta analogía únicamente funciona a nivel de recepción musical y social cuando estamos ante un líder varón. El presente artículo analiza con perspectiva de género el rol del director de orquesta partiendo de su origen, como figura que surge en el siglo XIX y evoluciona hasta la actualidad. En concreto se exponen los resultados de una investigación cuyo objeti…
Estilo de liderazgo en un órgano de control externo. El caso de la Sindicatura de Comptes de la Comunitat Valenciana
2019
Este artículo analiza los patrones de liderazgo en la Sindicatura de Comptes de la Comunitat Valenciana durante sus tres décadas de existencia. Como organización pública de relevancia estatutaria ha experimentado una modernización sostenida para adecuar sus estructuras al entorno sociopolítico. Uno de los factores que explican el calado de los cambios de la Sindicatura es el liderazgo y el modelo directivo (Bass 1985) de sus síndicos mayores en las distintas fases del ciclo de vida (Levitt, 1965; Adizes, 1994). Por consiguiente, partiendo de un estudio longitudinal de la caracterización de los liderazgos de los síndicos mayores entre 1985-2015 se expondrán los principales rasgos que han car…