Jean-Louis Grenard
A5088647568- Particle Detector Development and Performance
- Superconducting Materials and Applications
- Particle physics theoretical and experimental studies
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Radiation Therapy and Dosimetry
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Graphite, nuclear technology, radiation studies
- Distributed and Parallel Computing Systems
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Radioactive Decay and Measurement Techniques
- Crystallography and Radiation Phenomena
- Magnetic confinement fusion research
- Effects of Environmental Stressors on Livestock
- Atomic and Molecular Physics
- Greenhouse Technology and Climate Control
- Antenna Design and Optimization
- Radiation Effects in Electronics
- Spacecraft and Cryogenic Technologies
European Organization for Nuclear Research
2013-2024
Abstract SND@LHC is a compact and stand-alone experiment designed to perform measurements with neutrinos produced at the LHC in pseudo-rapidity region of 7.2 < η 8.4. The located 480 m downstream ATLAS interaction point, TI18 tunnel. detector composed hybrid system based on an 830 kg target made tungsten plates, interleaved emulsion electronic trackers, also acting as electromagnetic calorimeter, followed by hadronic calorimeter muon identification system. able distinguish interactions...
We explore the description of bound $^{19}$B isotope in terms a $^{17}$B+n+n three-body system where two-body subsystems $^{17}$B+n and neutron-neutron (nn) have virtual states close to continuum. Dimensionless scaling functions for root-mean-square (rms) radii are defined studied different parameters neutron-core potential considering three models interaction. The rooted on universal behavior systems Efimov limit depend only dimensionless quantities formed by two-neutron separation energies...
A new parasitic, mixed-field, neutron-dominated irradiation station has been recently commissioned at the European Laboratory for Particle Physics (CERN). The is installed in Neutron Time-Of-Flight (n\_TOF) facility, taking advantage of secondary radiation produced by neutron spallation target. allows damage studies to be performed conditions that are closer ones encountered during operation particle accelerators; tests carried out will complementary standard on materials, usually with gamma...
Previous pair-production-driven positron source designs have assumed that the transverse dimension of target is significantly greater than secondary beam it generates. This paper explores use targets with different profiles aim enhancing production. The starting point this research concept wire targets, proposed by M. James et al. in 1991 for former SLC source. Building on foundation, study takes a step further introducing conical-shaped which can substantially improve yield reducing...
The Super Proton Synchrotron (SPS) is the last stage in injector chain for CERN’s Large Hadron Collider, and it also provides proton ion beams several fixed-target experiments. SPS has been operation since 1976, upgraded over years. For to operate safely, its internal beam dump must be able repeatedly absorb energy of circulating without sustaining damage that would affect function. latest upgrades led requirement with a momentum spectrum from 14 <a:math...
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including contribution from cascade production. An optimisation run performed July 2018 at CERN SPS using hybrid setup. high resolution of nuclear emulsions acting as vertex detector complemented electronic detectors for kinematic measurements and muon identification. Here we present first results on analysis exposed run, which prove capability reconstructing proton...
Remote inspection, measurement and handling techniques are under development for use in CERN's particle accelerator facilities to reduce radiation exposure of personnel facility downtime when scheduled maintenance or breakdown repairs needed. This paper gives an explanation the potential benefits CERN remote along with a brief history work at CERN. Recent projects then described, covering operations forming part recent activities.
CERN’s Proton Synchrotron Booster (PSB) is undergoing a major upgrade program in the frame of LHC Injectors Upgrade (LIU) project. During first long shutdown (LS1) some parts have already been implemented, and machine has successfully re-commissioned. More work planned for upcoming end-of-year technical stops, notably 2016/17, while most to take place during second (LS2). We report on items completed commissioned, Run 2 beam performance give status ongoing design integration work.
Abstract CERN-MEDICIS is an isotope mass separation facility dedicated to biomedical research located in a type A work sector, receiving on average 50% of the 1.4 GeV protons delivered by Proton Synchrotron Booster (PSB). It was commissioned with Radioactive Ion Beams (RIB’s) 2017. MEDICIS has operated for past 5 years batch mode, targets irradiated station at HRS beam dump, and external sources provided cyclotrons nuclear reactors partners, notably during Long Shutdown (LS2). Additional...
CERN's Super Proton Synchrotron (SPS) high-energy internal dump (Target Internal Dump Vertical Graphite, known as TIDVG) is required to intercept beams from 10² 450 GeV. The equipment installed in 2014 (TIDVG#3) featured an absorbing core composed of different materials surrounded by a water-cooled copper jacket, which hold the UHV machine. An inspection previous (TIDVG#2) 2013 revealed significant beam induced damage aluminium section dump, imposing operational limitations minimise risk...