B. Goddard
A5082111992- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Crystallography and Radiation Phenomena
- Laser-Plasma Interactions and Diagnostics
- Gyrotron and Vacuum Electronics Research
- Neutrino Physics Research
- Radiation Therapy and Dosimetry
- Electrostatic Discharge in Electronics
- High-Energy Particle Collisions Research
- Distributed and Parallel Computing Systems
- Advanced X-ray Imaging Techniques
- Dark Matter and Cosmic Phenomena
- Pulsed Power Technology Applications
- Radiation Detection and Scintillator Technologies
- Magnetic confinement fusion research
- Nuclear Physics and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- High voltage insulation and dielectric phenomena
- Astrophysics and Cosmic Phenomena
- Graphite, nuclear technology, radiation studies
- Fusion materials and technologies
- Quantum Chromodynamics and Particle Interactions
European Organization for Nuclear Research
2015-2024
Université Paris-Saclay
2022
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2022
Institut National de Physique Nucléaire et de Physique des Particules
2022
Centre National de la Recherche Scientifique
2022
The physics programme and the design are described of a new collider for particle nuclear physics, Large Hadron Electron Collider (LHeC), in which newly built electron beam 60 GeV, up to possibly 140 energy collides with intense hadron beams LHC. Compared HERA, kinematic range covered is extended by factor twenty negative four-momentum squared, $Q^2$, inverse Bjorken $x$, while luminosity $10^{33}$ cm$^{-2}$s$^{-1}$ LHeC projected exceed integrated HERA two orders magnitude. devoted an...
The discovery by the ATLAS and CMS experiments of a new boson with mass around 125 GeV measured properties compatible those Standard-Model Higgs boson, coupled absence discoveries phenomena beyond Standard Model at TeV scale, has triggered interest in ideas for future factories. A circular e+e- collider hosted 80 to 100 km tunnel, TLEP, is among most attractive solutions proposed so far. It clean experimental environment, produces high luminosity top-quark, W Z studies, accommodates multiple...
The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) energy and intensity frontier particle physics. Exploiting recovery technology, it collides a novel, intense beam with proton or ion from High Luminosity--Large (HL-LHC). accelerator interaction region are for concurrent electron-proton proton-proton operation. This report represents an update Conceptual Design Report (CDR) LHeC, published in 2012. It comprises new results on parton...
New acceleration technology is mandatory for the future elucidation of fundamental particles and their interactions. A promising approach to exploit properties plasmas. Past research has focused on creating large-amplitude plasma waves by injecting an intense laser pulse or electron bunch into plasma. However, maximum energy gain electrons accelerated in a single stage limited driver. Proton bunches are most drivers wakefields accelerate TeV scale stage. An experimental program at CERN—the...
The next generation neutrino observatory proposed by the LBNO collaboration will address fundamental questions in particle and astroparticle physics. experiment consists of a far detector, its first stage 20 kt LAr double phase TPC magnetised iron calorimeter, situated at 2300 km from CERN near detector based on highpressure argon gas TPC. long baseline provides unique opportunity to study flavour oscillations over their 1st 2nd oscillation maxima exploring L/E behaviour, distinguishing...
Numerical optimization algorithms are already established tools to increase and stabilize the performance of particle accelerators. These have many advantages, available out box, can be adapted a wide range problems in accelerator operation. The next boost efficiency is expected come from reinforcement learning that learn optimal policy for certain control problem hence, once trained, do without time-consuming exploration phase needed numerical optimizers. To investigate this approach,...
A conceptual design is presented of a novel energy-recovering linac (ERL) facility for the development and application energy recovery technique to linear electron accelerators in multi-turn, large current regime. The main characteristics powerful experiment (PERLE) are derived from Large Hadron Collider, an beam upgrade under study LHC, which it would be key demonstrator. PERLE thus projected as investigate efficient, high (HC) (>10 mA) ERL operation with three re-circulation passages...
The Large Hadron Collider (LHC) at CERN will collide two counter-rotating proton beams, each with an energy of 7 TeV. stored in the superconducting magnet system exceed 10 GJ, and beam has a 362 MJ which could cause major damage to accelerator equipment case uncontrolled loss. Safe operation LHC therefore rely on complex for protection. systems protection magnets quench must be fully operational before powering magnets. For safe injection 450 GeV into LHC, absorbers their correct positions...
The large hadron collider (LHC) will allow for collision between two 7TeV∕c proton beams, each comprising 2808 bunches with 1.1×1011 protons per bunch, traveling in opposite direction. bunch length is 0.5ns and neighboring are separated by 25ns so that the duration of entire beam about 89μs. power profile transverse direction a Gaussian standard deviation 0.2mm. energy stored 350MJ sufficient to melt 500kg copper. In case failure machine protection systems, could impact directly onto an...
The flux of high-energy protons slow-extracted from the CERN Super Proton Synchrotron (SPS) is limited by induced radioactivity caused beam loss intrinsic to extraction process. Methods substantially increase efficiency process are great interest fulfill requests for an increasing 400 GeV present experiments, located in North Area SPS, and also potential future experiments with very high demanded on target. A crystal shadowing technique significantly reduce scattered lost electrostatic...
Multi-objective optimization is important for particle accelerators where various competing objectives must be satisfied routinely such as, example, transverse emittance vs bunch length. We develop and demonstrate an online multi-time scale multi-objective algorithm that performs real time feedback on accelerators. the ability to simultaneously minimize maintain a reference trajectory of beam in electron beamline CERN’s Advanced Proton Driven Plasma Wakefield Acceleration Experiment.
The next generation neutrino observatory proposed by the LBNO collaboration will address fundamental questions in particle and astroparticle physics. experiment consists of a far detector, its first stage 20 kt LAr double phase TPC magnetised iron calorimeter, situated at 2300 km from CERN near detector based on high-pressure argon gas TPC. long baseline provides unique opportunity to study flavour oscillations over their 1st 2nd oscillation maxima exploring $L/E$ behaviour, distinguishing...
Abstract The ENUBET project is aimed at designing and experimentally demonstrating the concept of monitored neutrino beams. These novel beams are enhanced by an instrumented decay tunnel, whose detectors reconstruct large-angle charged leptons produced in tunnel give a direct estimate flux source. facilities thus ideal tool for high-precision cross-section measurements GeV scale because they offer superior control beam systematics with respect to existing facilities. In this paper, we...
One of the main goals Long Baseline Neutrino Observatory (LBNO) is to study $L/E$ behaviour (spectral information) electron neutrino and antineutrino appearance probabilities, in order determine unknown CP-violation phase $δ_{CP}$ discover leptonic sector. The result based on measurement probabilities a broad range energies, covering t he 1st 2nd oscillation maxima, at very long baseline 2300 km. sensitivity experiment can be maximised by optimising energy spectra anti-neutrino fluxes. Such...
A Proton Driven Plasma Wakefield Acceleration Experiment has been proposed as an approach to eventually accelerate electron beam the TeV energy range in a single plasma section. To verify this novel technique, proof of principle R&D experiment, AWAKE, is planned at CERN using 400 GeV proton bunches from SPS. An will be injected into cell probe accelerating wakefield. The AWAKE experiment installed CNGS facility profiting existing infrastructure where only minor modifications need foreseen....
The beam dump facility (BDF) project is a proposed general-purpose at CERN, dedicated to and fixed target experiments. In its initial phase, the foreseen be exploited by Search for Hidden Particles Experiment. Physics requirements call pulsed $400\text{ }\text{ }\mathrm{GeV}/c$ proton as well highest possible number of protons on each year operation ($4.0\ifmmode\times\else\texttimes\fi{}{10}^{19}/\mathrm{year}$), in order search feebly interacting particles. target/dump assembly lies heart...
Top-up injection is an essential ingredient for the future circular lepton collider (FCC-ee) to maximize integrated luminosity and it determines design performance. In ttbar operation mode, with a beam energy of 175 GeV, lifetime ∼1 h shortest four anticipated operational modes, may be even shorter in actual operation. A highly robust top-up scheme consequently imperative. Various methods are investigated number suitable schemes considered developing alternative designs straight section...