Stewart Boogert
A5069489539- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Advanced X-ray Imaging Techniques
- Laser-Plasma Interactions and Diagnostics
- Gyrotron and Vacuum Electronics Research
- Laser Design and Applications
- Radiation Therapy and Dosimetry
- Superconducting Materials and Applications
- Advanced Optical Sensing Technologies
- Optical Systems and Laser Technology
- Crystallography and Radiation Phenomena
- Radiation Detection and Scintillator Technologies
- Photocathodes and Microchannel Plates
- Dark Matter and Cosmic Phenomena
- Nuclear Physics and Applications
- Pulsed Power Technology Applications
- Photonic and Optical Devices
- X-ray Spectroscopy and Fluorescence Analysis
- Graphite, nuclear technology, radiation studies
- Magnetic confinement fusion research
- Distributed and Parallel Computing Systems
Royal Holloway University of London
2014-2024
Cockcroft Institute
2024
Sci-Tech Daresbury
2024
University of Manchester
2023-2024
University of Aberdeen
2022
King's College Hospital
2022
University of Bristol
2022
European Organization for Nuclear Research
2014
Centre National de la Recherche Scientifique
2013
Université Paris-Sud
2013
Abstract High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along beam collision axis, outside acceptance existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from ATLAS interaction point and shielded by concrete rock, will host suite experiments probe standard model (SM) processes search for physics beyond (BSM). In this report, we review status civil engineering plans explore...
Abstract This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an experimental campaign that aims to combine the high-quality and high-energy electron beam of European with a powerful laser explore uncharted terrain quantum electrodynamics characterised by both high energy intensity. We will reach this hitherto inaccessible regime physics analysing electron-photon photon-photon interactions in extreme environment provided intense focus. The background its relevance are...
Beam Delivery Simulation (BDSIM) is a program that simulates the passage of particles in particle accelerator. It uses suite standard high energy physics codes (Geant4, ROOT and CLHEP) to create computational model accelerator combines accurate tracking routines with all processes Geant4. This unique combination permits radiation detector background simulations accelerators where both required over long range or many revolutions circular machine, as well interaction material
Abstract This Technical Design Report presents a detailed description of all aspects the LUXE (Laser Und XFEL Experiment), an experiment that will combine high-quality and high-energy electron beam European with high-intensity laser, to explore uncharted terrain strong-field quantum electrodynamics characterised by both high energy intensity, reaching Schwinger field beyond. The further implications for search physics beyond Standard Model are also discussed.
The HALHF collaboration has discussed a new baseline for the project, taking into account comments from accelerator community on various aspects of original design. In particular, these concerned practicality dual-purpose linac to accelerate both colliding positron bunches and drive beams required plasma linac. addition, many other project were also considered; discussion conclusions are documented in this paper. Finally, is outlined that been optimised addresses several weaknesses design,...
A novel scheme for the focusing of high-energy leptons in future linear colliders was proposed 2001 [P. Raimondi and A. Seryi, Phys. Rev. Lett. 86, 3779 (2001)]. This has many advantageous properties over previously studied schemes, including being significantly shorter a given energy having better bandwidth. Experimental results from ATF2 accelerator at KEK are presented that validate operating principle such by demonstrating demagnification 1.3 GeV electron beam down to below 65 nm height...
This report describes the conceptual design of a proposed free electron laser test facility called CLARA that will be major upgrade to existing VELA accelerator at Daresbury Laboratory in UK. able number new schemes have been but require proof principle experiment confirm they perform as predicted. The primary focus on ultra short photon pulse generation which take lasers into whole regime, enabling area science emerge.
The `Laser-hybrid Accelerator for Radiobiological Applications', LhARA, is conceived as a novel, flexible facility dedicated to the study of radiobiology. technologies demonstrated in which have wide application, will be developed allow particle-beam therapy delivered new regimen, combining variety ion species single treatment fraction and exploiting ultra-high dose rates. LhARA hybrid accelerator system laser interactions drive creation large flux protons or light ions that are captured...
This Technical Design Report presents a detailed description of all aspects the LUXE (Laser Und XFEL Experiment), an experiment that will combine high-quality and high-energy electron beam European with high-intensity laser, to explore uncharted terrain strong-field quantum electrodynamics characterised by both high energy intensity, reaching Schwinger field beyond. The further implications for search physics beyond Standard Model are also discussed.
The Accelerator Test Facility 2 (ATF2) is a scaled demonstrator system for final focus beam lines of linear high energy colliders. This paper describes the resolution cavity position monitor (BPM) system, which part ATF2 diagnostics. Two types BPMs are used, C-band operating at 6.423 GHz, and S-band 2.888 GHz with an increased aperture. cavities, electronics, digital processing described. attenuators was determined to be approximately 250 nm 1 m system. Without attenuation best recorded 27 nm.
Abstract pyWitness is a python toolkit for recognition memory experiments, with focus on eyewitness identification (ID) data analysis and model fitting. The current practice researchers to use different statistical packages analyze single dataset. streamlines the process. In addition conducting key analyses (e.g., receiver operating characteristic analysis, confidence accuracy analysis), comparisons, signal-detection-based fits, simulated generation, power are also possible. We describe...
Abstract Artificial intelligence is already all around us, and its usage will only increase. Knowing capabilities critical. A facial recognition system (FRS) a tool for law enforcement during suspect searches when presenting photos to eyewitnesses identification. However, there are no comparisons between eyewitness FRS accuracy using video, so it unknown whether face matches more accurate than memory identifying perpetrator. Ours the first application of artificial an experience, comparative...
ATF2 is a final-focus test beam line which aims to focus the low emittance from ATF damping ring vertical size of about 37 nm and demonstrate nanometer level stability. Several advanced diagnostics feedback tools are used. In December 2008, construction installation were completed commissioning started, supported by an international team Asian, European, U.S. scientists. The present status first results described.
Any future high energy e+e− linear collider aims at precision measurements of Standard Model quantities as well new, not yet discovered phenomena. In order to pursue this physics programme, excellent detectors the interaction region have be complemented by beam diagnostics unprecedented precision. This article gives an overview current plans and issues for polarimeters spectrometers International Linear Collider, which been designed fulfill goals a large range energies from 45.6 GeV Z0 pole...
We represent the first experimental observation of point spread function (PSF) optical transition radiation (OTR) performed at KEK-Accelerator Test Facility extraction line. have demonstrated that PSF vertical polarization component has a central minimum with two lobe distribution. However, distribution width varied significantly wavelength. assume we observed severe effect from spherical or chromatic aberrations which are not taken into account in any existing theoretical model. believe...
Abstract Due to the advancement of proton therapy for cancer treatment, there has been a worldwide increase in construction treatment facilities. Therapy centres are often coupled with clinical, biological or material-science research programs. Research activities require beams at energies spanning an extensive range higher beam currents and longer irradiation times than clinical conditions. Additionally, next-generation systems evolving towards more compact designs. In addition increased...
Optical transition radiation (OTR) has become a commonly used method for 2D beam imaging measurements. In the Accelerator Test Facility 2 (ATF2) at KEK, sizes smaller than OTR point spread function have been measured. Simulations of system performed using ZEMAX software to study effects optical errors such as aberrations, diffraction, and misalignments components. This paper presents comparison simulations with experimental data obtained ATF2. It shows how quantification control impacts on...