A5102022878- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- Mass Spectrometry Techniques and Applications
- Medical Imaging Techniques and Applications
- Laser-Plasma Interactions and Diagnostics
- Magnetic confinement fusion research
- Laser Design and Applications
- Advanced X-ray Imaging Techniques
- Atomic and Subatomic Physics Research
- Crystallography and Radiation Phenomena
- Electron and X-Ray Spectroscopy Techniques
- Advanced Sensor Technologies Research
- Gyrotron and Vacuum Electronics Research
- Gas Dynamics and Kinetic Theory
- Nuclear Physics and Applications
- Electromagnetic Simulation and Numerical Methods
- Optical Coatings and Gratings
- Advancements in PLL and VCO Technologies
- Electromagnetic Compatibility and Measurements
- X-ray Spectroscopy and Fluorescence Analysis
- Fusion materials and technologies
European Organization for Nuclear Research
2007-2024
Cockcroft Institute
2022
University of Liverpool
2022
Brookhaven National Laboratory
2006
Fermi Research Alliance
2006
RIKEN BNL Research Center
2006
University of Wales
1995-1997
Swansea University
1993-1997
We report on the observation of incoherent Cherenkov radiation emitted by a 5.3 GeV positron beam circulating in Cornell electron-positron storage ring as passes close vicinity surface fused silica radiator (i.e., at distance larger than 0.8 mm). The shape was designed order to send photons towards detector, consisting compact optical system equipped with an intensified camera. allows both measurements 2D images and angular distribution including polarization study. corresponding light...
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.
The transverse impedance in the LHC is expected to be dominated by numerous collimators, most of which are made Fibre-Reinforced-Carbon withstand impacts high intensity proton beams case failures, and will moved very close beam, with full gaps few millimetres, order protect surrounding super-conducting equipments. We present an estimate resistive-wall total at injection top energy, induced coupled-bunch growth rates tune shifts, finally result comparison theoretical predictions measurements...
The AWAKE project at CERN is planned to study proton driven plasma wakefield acceleration. beam from the SPS will be used in order drive wakefields a 10 m long Rubidium cell. In first phase of this experiment, scheduled 2016, self-modulation studied detail, while second an external electron injected into probe acceleration process. installation former CNGS experimental area and required optics flexibility define tight boundary conditions fulfilled by line design. transport low energy (10-20...
These lectures aim to describe instruments and methods used for measuring beam parameters in particle accelerators. Emphasis will be given new detection analysis techniques each field of accelerator instrumentation. A clear distinction is made between 'instrumentation', the design construction themselves, 'diagnostics', use data from these running improving performance accelerator.
The new beam profile measurement for the Antiproton Decelerator (AD) at CERN is based on a single Gas Electron Multiplier (GEM) with 2D readout structure. This detector very light, ∼ 0.4% X0, as required by low energy of antiprotons, 5.3 MeV. overcomes problems previously encountered multi-wire proportional chambers (MWPC) same purpose, where interactions severely affect obtained profiles. A prototype was installed and successfully tested in late 2010, another five detectors now ASACUSA...
The AWAKE project at CERN is planned to study proton driven plasma wakefield acceleration with an externally injected electron beam. Therefore two transfer lines are being designed in order provide the beam from SPS and RF gun cell. commissioning of line will take place 2016 for first phase experiment, which focused on self-modulation a 12 cm long bunch plasma. be added second 2017, when probed 10–20 MeV/c. challenge these lies parallel operation proton, laser used ionize seed...
The Beam Gas Vertex (BGV) detector is foreseen as a possible non-invasive beam size measurement instrument for the LHC and its luminosity upgrade. This technique based on reconstruction of beam-gas interaction vertices, where charged particles produced in inelastic interactions are measured with high-precision tracking detectors. design studies expected performance currently developed BGV prototype will be presented an overview given associated vacuum, readout systems. A brief description...
The two eigentunes Q <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">I</inf> and xmlns:xlink="http://www.w3.org/1999/xlink">II</inf> , eigenmode amplitude ratios R eignmode phase differences Δφ are defined as the coupling observables for linear weak difference betatron coupling. Simulations were carried out to investigate their behaviors in global decoupling scans. It was found that more sensitive than tune split when scan is approaching...