A5008609814- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Fusion materials and technologies
- Quantum Chromodynamics and Particle Interactions
- Graphite, nuclear technology, radiation studies
- Advanced Sensor Technologies Research
- Advancements in Photolithography Techniques
- Advanced X-ray Imaging Techniques
- Nuclear Physics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Laser-Plasma Interactions and Diagnostics
- Neutrino Physics Research
- Metallurgical and Alloy Processes
- High Temperature Alloys and Creep
- Gas Dynamics and Kinetic Theory
- Cosmology and Gravitation Theories
- Advanced Electron Microscopy Techniques and Applications
- Laser-induced spectroscopy and plasma
- Superconductivity in MgB2 and Alloys
- Fiber-reinforced polymer composites
European Organization for Nuclear Research
2012-2024
University of Liverpool
2022
Cockcroft Institute
2022
Queen Mary University of London
2011
University of Leicester
1990
A minimally invasive transverse beam profile monitor based on supersonic gas curtain technology and beam-induced fluorescence has been developed demonstrated. The concept presented can be used to measure both the of proton in Large Hadron Collider (LHC) concentricity electron beams LHC hollow lens. In this Letter, performance such a for low energy is discussed, which paves way its wider implementation.
Standard circular ConFlat® (CF) flanges are widely used in industry due to their high sealing reliability after being subjected a bakeout process. The Beam Gas Ionisation (BGI) instrument for the CERN Proton Synchrotron accelerator will require CF-like rectangular system. Although CF-type with plastically deforming metal seals have been used, no published designs validated tests under UHV conditions available. Existing CF were compared and design flange was proposed. Two prototypes...
A new design of wire scanner is under development for the LHC Injector Upgrade project at CERN. prototype has been designed, built and installed in SPS accelerator to test concept an operational environment. New technology developed qualified in-vacuum motor structural components using 3D metal additive machining. This paper will describe this results date. recently re-optimised fit limited space available PS Booster rings. also be presented.
Cold arcs of the LHC will consist twin aperture dipole, quadrupole and corrector magnets in cryostats, operating at 1.9 K. Beam vacuum chambers, along with all connecting elements require flexible interconnects between adjacent cryostats to allow for thermal mechanical offsets foreseen during machine operation alignment. In addition, beam chambers contain perforated screens intercept induced heat loads an intermediate temperature. These must also be connected low impedance RF bridges...
Forty-four kilometers of the LHC beam vacuum system will be equipped with a perforated co-axial liner, so-called screen. Operating between 5 K and 20 K, screen reduces heat loads to 1.9 helium bath superconducting magnets minimises dynamic effects. Constructed from low magnetic permeability stainless steel 50 /spl mu/m inner layer high purity copper, must provide maximum aperture for whilst resisting induced forces due eddy currents at magnet quench. The mechanical engineering challenges are...
The numerous complex activities required to prepare the cryomagnets for installation in String 2 are described. These include configuration of mechanical interfaces, conditioning beam tubes, screens and instrumentation as well final checks. preparation has been a dress rehearsal that will undergo before their tunnel. After description interconnection procedures components 2, tests carried-out release operation A brief account lessons learnt is also given.
A beam gas curtain (BGC) monitor has been designed to obtain information about the relative position between LHC proton and hollow electron lens through a minimally invasive process. Its working principle relies on intersecting path of both beams with supersonic curtain, introduced transversely into beamline, produce fluorescence signal. As an intermediate project stage (phase II), preliminary version BGC installed beamline. To ensure successful integration subsequent operation under...
The LHC beam dumping system must safely abort the beams under all conditions, including those resulting from abnormal behaviour of machine elements or subsystems itself. extraction channels provide sufficient aperture both for circulating and extracted beams, over whole energy range various parameters. These requirements impose tight constraints on tolerances channel components, also allowed positions in region these components. Operation fault states has been considered, apertures...
Copyright © 2018 by JACoW — cc Creative Commons Attribution 3.0. High luminosity upgrades to the LHC at CERN and future high-energy frontier machines will require a new generation of minimally invasive profile measurement instruments. Production dense, focussed gas target allows beam-gas fluorescence be exploited as an observable, giving instrument suitable for installation even in regions high magnetic field. This paper describes development device based on these principles that would...