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Apresentação I Candidaturas I Informações Úteis I Contactos | Relatório 1996-2009

Oportunidades CERN I Oportunidades ESA I Oportunidades ESO

Bolsas para Estágio no
CERN - Laboratório Europeu de Física de Partículas

Concurso para apresentação de candidaturas
aberto até 30 de Setembro de 2011

Lista de Oportunidades

A lista de oportunidades está organizada por áreas tecnológicas. Seleccione a área do seu interesse para ter acesso às oportunidades disponíveis e consulte a área Candidatura para mais informações sobre como se candidatar.

Accelerator Physics
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Job Code	DG154
Department	DG
Discipline	Experimental Applied Physics
Description	Technology Transfer Facilitator. 1) Validate, update and enrich technical data on CERN Technologies with transfer potential to industry. 2) Liaise with CERN researchers and inventors to ensure the originality and correctness of the data. 3) Track advances in competing technologies. 4) Optimize the position of CERN technologies with respect to targeted domains of transfer.
Special Requirements	Physicist or engineer with knowledge of one, or more, of the Technology Domains interesting for CERN: Applied physics and instrumentation, material sciences, computing, electronics, controls and data acquisition and accelerator physics.
Training Value	Technology and Market Assessments Technology promotion Commercialization of Intellectual Property
Supervisor	JEAN-MARIE LE GOFF

Job Code	PH2603
Department	PH
Discipline	Experimental Applied Physics
Description	ATLAS is one of the experiments that operate at the CERN LHC collider, where proton-proton collisions take place at unprecedent high energies opening a new frontier in particle physics studies. Tilecal is the hadronic calorimeter of ATLAS and one of its main purposes is the measurement of the energy of jets. Tilecal is made of scintillating material embedded in an iron matrix. Wavelength shifting optical fibres collect the light from the scintillators and guide it to photomultipliers (PMTs). Tilecal is built in three cylindrical sections, two 3 m long sections and one 6 m long section. Each cylinder is built by joining 64 modules. The total number of cells is about 5000 and each cell is readout by 2 PMTs. The context of this job offer is to be integrated in the team in charge of the calibration of the calorimeter. The energy scale was determined testing a small set of individual modules with high energy electron beams before the assembly of the detector. To use that energy scale in the jet reconstruction in LHC it is needed to get the energy response of each cell of all the calorimeter modules and equalise them. There are 3 systems used in the calibration and monitoring of the Tilecal cells: a movable cesium source used to inter-calibrate the several cells, a laser system used to monitor the gain of the PMTs and the respective electronic chain, and a charge injection system used to calibrate the electronic chain response. The candidate will learn the details of each of the calibration systems and the way they are integrated in the global calibration chain of Tilecal. This calibration approach is complemented with methods that use the LHC physics events to calibrate the global calorimeter of ATLAS. The candidate will develop calibration software tools, that access the databases where calibration parameters are stored and will implement calibration algorithms. The final goal is to obtain the calibration parameters and the magnitude of the systematic and/or statistical errors in the determination of the energy scale.
Special Requirements	Degree in physics, physics engineering or electronics engineering with interest in detector development
Training Value	Gain experience in practical aspects of calibration of a detector
Supervisor	ANA MARIA HENRIQUES CORREIA

Job Code	PH2923
Department	PH
Discipline	Experimental Applied Physics
Description	CLIC Detector R&D and Reconstruction Tools Introduction: within the CERN Linear Collider Detector project, we currently perform detector concept studies and detector simulations for a future experiment at the 3 TeV CLIC e+e- collider. In general, the detectors shall be capable of providing high-precision measurements in the presence of a significant beam-induced particle background. We also perform targeted detector R&D in a few important development areas for such a future experiment. These hardware R&D activities concentrate on: high-precision and low-mass pixel detector development for the CLIC vertex detector, beam tests of dense hadron calorimetry based on tungsten absorber, time-stamping and power-pulsing technologies for CLIC detectors. The trainee project will be devoted at the 50% level to the assessment of a tungsten-based hadron calorimeter: preparation of beam tests of HCAL modules based on various active detector techniques (scintillator and gas-based), calibration, data taking, analysis of test beam data, assessment of time-stamping capabilities, verification with Geant4 models, drawing conclusions about suitability for a CLIC detector. The HCAL development will be carried out in the framework of the CERN LCD project and the CALICE collaboration. The other half of the project will be devoted to studies in one of the three following domains (choice to be made later and in agreement with the student): optimisation of high-energy jet reconstruction tools based on Particle Flow Analysis techniques, development of track reconstruction and lepton identification tools, participation in CLIC vertex detector R&D. Contact person: Lucie Linssen (Linear Collider Detector project leader)
Special Requirements	University degree in physics, including university courses in particle physics. Programming skills, preferably C++. Additional knowledge of detector simulation tools (e.g. Geant) will be an advantage.
Training Value	The project offers the opportunity to a young physicist to acquire a broad knowledge in particle physics and particle detection. The LCD project is currently in a phase where fundamental choices for a future experiment will be made. The trainee will therefore have the opportunity to learn about the core underlying principles driving the concept and technology choices of a large particle physics experiment. The project offers the opportunity to work both on hardware and on software tasks. The project is carried out in a framework of international collaboration. The trainee will be supervised by an experienced experimental physicist.
Supervisor	LUCIA LINSSEN

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