R. Chipaux
A5026787822- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Advanced Semiconductor Detectors and Materials
- Dark Matter and Cosmic Phenomena
- Nuclear Physics and Applications
- Luminescence Properties of Advanced Materials
- High-Energy Particle Collisions Research
- Gamma-ray bursts and supernovae
- Rare-earth and actinide compounds
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Neutrino Physics Research
- Radiation Therapy and Dosimetry
- Nuclear reactor physics and engineering
- Inorganic Fluorides and Related Compounds
- Nuclear materials and radiation effects
- Nuclear Materials and Properties
- Planetary Science and Exploration
- Particle Accelerators and Free-Electron Lasers
- Ionosphere and magnetosphere dynamics
- Quantum Chromodynamics and Particle Interactions
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2009-2023
CEA Paris-Saclay
2008-2023
Université Paris-Saclay
2007-2023
Université Paris Cité
2022
Astrophysique, Instrumentation et Modélisation
2022
Centre National de la Recherche Scientifique
2022
Institut de Recherche sur les Lois Fondamentales de l'Univers
2009-2017
DSM (Netherlands)
1996-2015
Département d'Informatique
2011-2015
Kavli Institute for Particle Astrophysics and Cosmology
2009
(Abridged) The Large Area Telescope (Fermi/LAT, hereafter LAT), the primary instrument on Fermi Gamma-ray Space (Fermi) mission, is an imaging, wide field-of-view, high-energy gamma-ray telescope, covering energy range from below 20 MeV to more than 300 GeV. This paper describes LAT, its pre-flight expected performance, and summarizes key science objectives that will be addressed. On-orbit performance presented in detail a subsequent paper. LAT pair-conversion telescope with precision...
We present the second catalog of high-energy gamma-ray sources detected by Large Area Telescope (LAT), primary science instrument on Fermi Gamma-ray Space (Fermi), derived from data taken during first 24 months phase mission, which began 2008 August 4. Source detection is based average flux over 24-month period. The Second Fermi-LAT (2FGL) includes source location regions, defined in terms elliptical fits to 95% confidence regions and spectral power-law, exponentially cutoff or log-normal...
The energy resolution of the barrel part CMS Electromagnetic Calorimeter has been studied using electrons 20 to 250 GeV in a test beam. incident electron's was reconstructed by summing measured arrays 3 × or 5 channels. There no significant amount correlated noise observed within these arrays. For at centre crystals, mean stochastic term be 2.8% and constant 0.3%. electrons' which is contained array depends on its position incidence. variation containment with corrected for distribution...
The response of the CMS barrel calorimeter (electromagnetic plus hadronic) to hadrons, electrons and muons over a wide momentum range from 2 350 GeV/c has been measured. To our knowledge, this is widest momenta in which any system studied. These tests, carried out at H2 beam-line CERN, provide wealth information, especially low energies. analysis differences charged pions, kaons, protons antiprotons detailed discussion underlying phenomena are presented. We also show techniques that apply...
Five single crystals of cerium-doped lutetium yttrium oxyorthosilicate (LYSO:Ce) grown by the Czochralski method were submitted to structural characterisation X-ray (XRD) and neutron (ND) diffraction, scanning (SEM) transmission (TEM) electron microscopy energy dispersive microanalysis (EDS). The Ultimate Tensile Strength (UTS), Young Modulus (YM) Light Yield (LY) samples also measured in order correlate mechanical optical behaviour with characteristics their microstructure. Two analysed...
We present the Micro-channel X-ray Telescope (MXT), a new narrow-field (about 1 • ) telescope that will be flying on Sino-French SVOM mission dedicated to Gamma-Ray Burst science, scheduled for launch in 2021.MXT is based square micro pore optics (MPOs), coupled with low noise CCD.The are "Lobster Eye" design, while CCD focal plane detector similar type developed seven eROSITA telescopes.MXT compact and light (<35 kg) m length, it provide an effective area of about 45 cm 2 axis at keV.The...
Joint progresses in Cd(Zn)Te detectors, microelectronics and interconnection technologies open the way for a new generation of instruments physics astrophysics applications energy range from 1 to 1000 keV. Even working between -20 20 degrees Celsius, these will offer high spatial resolution (pixel size ranging 300 x square micrometers few millimeters), spectral response detection efficiency. To reach goals, reliable, highly integrated, low noise power consumption electronics is mandatory....
Ensuring the radiation hardness of PbWO4 crystals was one main priorities during construction electromagnetic calorimeter CMS experiment at CERN. The production on an industrial scale hard and their certification over a period several years represented difficult challenge both for crystal suppliers. present article reviews related scientific technological problems encountered.
The performance of electromagnetic calorimeter modules made proton-irradiated PbWO4 crystals has been studied in beam tests. modules, similar to those used the Endcaps CMS (ECAL), were formed from 5×5 matrices crystals, which had previously exposed 24 GeV protons up integrated fluences between 2.1× 1013 and 1.3× 1014 cm−2. These correspond predicted charged-hadron ECAL at pseudorapidity η = 2.6 after about 500 fb−1 3000 respectively, corresponding end LHC High Luminosity operation periods....
Caliste HD is a recently developed micro-camera designed for X and gamma-ray astronomy, based on 1×1 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> CdTe Schottky pixelated detector. Its entire surface composed of 256 pixels, disposed 16 × pixel array. This spectrometer buttable its 4 sides can be used to create large focal plane. It also space environment. IDeF-X front-end electronics has low power consumption, excellent noise...
Abstract. With a launch expected in 2018, the TARANIS microsatellite is dedicated to study of transient phenomena observed association with thunderstorms. On board spacecraft, XGRE and IDEE are two instruments studying terrestrial gamma-ray flashes (TGFs) associated electron beams (TEBs). can detect electrons (energy range: 1 10 MeV) X- gamma-rays 20 keV very high counting capability (about million counts per second) ability discriminate one type particle from another. The instrument focused...