François‐Xavier Nuiry
A5074410826- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Radiation Detection and Scintillator Technologies
- CCD and CMOS Imaging Sensors
- Ion-surface interactions and analysis
- Fusion materials and technologies
- Particle physics theoretical and experimental studies
- Spacecraft and Cryogenic Technologies
- Non-Destructive Testing Techniques
- Medical Imaging Techniques and Applications
- Nuclear Materials and Properties
- Nuclear Physics and Applications
- Graphite, nuclear technology, radiation studies
- Muon and positron interactions and applications
- Pulsed Power Technology Applications
- Engineering Applied Research
- Powder Metallurgy Techniques and Materials
- Radiation Therapy and Dosimetry
European Organization for Nuclear Research
2012-2024
Max Planck Society
2019
The ATLAS collaboration will upgrade its semiconductor pixel tracking detector with a new Insertable B-layer (IBL) between the existing and vacuum pipe of Large Hadron Collider. extreme operating conditions at this location have necessitated development radiation hard sensor technologies front-end readout chip, called FE-I4. Planar sensors 3D been investigated to equip layer, prototype modules using FE-I4A fabricated characterized 120 GeV pions CERN SPS 4 positrons DESY, before after module...
The Compact Linear Collider (CLIC) is a high-energy high-luminosity linear electron-positron collider under development. It foreseen to be built and operated in three stages, at centre-of-mass energies of 380 GeV, 1.5 TeV 3 TeV, respectively. offers rich physics program including direct searches as well the probing new through broad set precision measurements Standard Model processes, particularly Higgs-boson top-quark sectors. required for such specific conditions imposed by beam dimensions...
A prototype of a luminometer, designed for future $$e^+e^-$$ collider detector, and consisting at present four-plane module, was tested in the CERN PS accelerator T9 beam. The objective this beam test to demonstrate multi-plane tungsten/silicon operation, study development electromagnetic shower compare it with MC simulations. Molière radius has been determined be 24.0 ± 0.6 (stat.) 1.5 (syst.) mm using parametrization shape. Very good agreement found between data detailed Geant4 simulation.
Novel beam-intercepting materials and targetry concepts are essential to improve the performance, reliability operation lifetimes of next generation multi-megawatt (multi-MW) accelerator target facilities. The components must sustain an order-of-magnitude increase in particle beam intensities beyond current state-of-the-art. With conventional already limiting scope experiments, it is crucial investigate novel materials, technologies that will satisfy requirements maximize physics benefits...
Abstract In view of the High-Luminosity upgrade Large Hadron Collider (HL-LHC) at CERN, different materials were investigated for LHC collimation system. A key objective was to determine how jaws new collimators could be manufactured meet demanding requirements HL-LHC, such as thermo-mechanical robustness and stability, beam coupling impedance, Ultra-High Vacuum (UHV), etc. During Long-Shutdown 2 (LS2), five primary ten secondary low-impedance already produced using novel materials. For LS3,...
3D Carbon/Carbon (3D CC) is a well-known industrial composite material for high-temperature applications. One of its main advantages resides in ability to maintain good characteristics at elevated temperatures (higher than 2700°C), which makes it potentially interesting beam interaction applications where high strength temperature required. The intercepting devices withstand direct impacts high-energy proton beams essential the operation Large Hadron Collider (LHC) European Laboratory...
The new generation internal beam dump of the Super Proton Synchrotron (SPS) at CERN will have to dissipate approximately 270 kW thermal power, deposited by primary proton beam. For this purpose, it is essential that cooling system features a very efficient heat evacuation. Diffusion bonding assisted hot isostatic pressing (HIP) was identified as promising method joining circuits and materials dumps core in order maximize transfer efficiency. This paper presents investigation HIP diffusion...
The current LHC transfer line collimation system will not be able to provide enough protection for the high brightness beams in high-luminosity era. new have attenuate more and robust than its predecessor. active jaw length of collimators therefore 2.1 m instead currently 1.2 m. optics adjusted collimator locations larger beta functions at absorber robustness reasons. In this paper design presented with implications on powering, maintainability, magnets case beam loss a aperture.
Flexible graphite (FG) with ρ = 1 g/cm3 density is a type of highly porous and anisotropic graphite, mainly used for gaskets sealing applications, but also suitable energy absorption, such as in the beam dumping devices Large Hadron Collider (see Heredia 2021 [1]). Knowledge its microstructure mechanical properties needs to be developed selection an adequate material model able accurately predict stresses failure FG components. Here, available literature are reviewed, followed by Focused Ion...
HRMT-60 experiment was performed at the CERN-HiRadMat facility in October 2022 to understand thermal shock response of conventional materials and novel support design operation future multi-MW accelerator beam windows secondary particle-production targets. This experiment, organized within framework RaDIATE collaboration, builds on previous HRMT-43 (BeGrid2) where a variety both non-irradiated previously proton-irradiated conditions were tested. The primary goal failure mechanisms, limits...
Two special calorimeters are foreseen for the instrumentation of very forward region an ILC or CLIC detector; a luminometer (LumiCal) designed to measure rate low angle Bhabha scattering events with precision better than 10$^{-3}$ at and 10$^{-2}$ CLIC, polar-angle calorimeter (BeamCal). The latter will be hit by large amount beamstrahlung remnants. intensity spatial shape these depositions provide fast luminosity estimate, as well determination beam parameters. sensors this must...
As part of the LHC Injectors Upgrade Project (LIU) injection system into SPS will be upgraded for use with ions. The changes include addition a Pulse Forming Line parallel to existing PFN power kicker magnets MKP-S. With PFL reduced magnetic field rise time 100 ns should reached. missing deflection strength given by two new septum MSI-V, installed between MSI and kickers A dedicated ion dump downstream elements. parameter lists elements studies concerning emittance blow-up coming from are...