A5063641903- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Physics of Superconductivity and Magnetism
- Particle Detector Development and Performance
- Microwave Engineering and Waveguides
- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
- Photocathodes and Microchannel Plates
- Electromagnetic Compatibility and Measurements
- Electromagnetic Compatibility and Noise Suppression
- Spacecraft and Cryogenic Technologies
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced X-ray Imaging Techniques
- CCD and CMOS Imaging Sensors
- Advanced Data Storage Technologies
- Plasma Diagnostics and Applications
- Electromagnetic Simulation and Numerical Methods
- Nuclear Physics and Applications
- Scientific Computing and Data Management
- Electrostatic Discharge in Electronics
- Superconducting and THz Device Technology
- Radiation Detection and Scintillator Technologies
- Biosensors and Analytical Detection
Institut de Recherche sur les Lois Fondamentales de l'Univers
2021
Daresbury Laboratory
2004-2020
Cockcroft Institute
2007-2020
Sci-Tech Daresbury
2014-2020
Lancaster University
2017
Diamond Light Source
2012
Advanced Systems Technology (United States)
2007
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 compact linear accelerator for research and applications (CLARA) is an ultrabright electron beam test facility being developed at STFC Daresbury Laboratory. ultimate aim of CLARA to advanced free laser (FEL) schemes that can later be implemented on existing future short-wavelength FELs. In addition, a unique provide high-quality novel concepts ideas in wide range disciplines function as technology demonstrator United Kingdom x-ray FEL facility. built three phases; the first phase, or...
In certain high power RF systems multipactor cannot be avoided for all operating points, but its existence places limits on performance, efficiency, lifetime, and reliability. As an example in the input couplers of superconducting cavities can a major limitation to maximum power. Several studies have concentrated rectangular waveguide which are used many light sources. Most these neglect space charge assuming that effect is simply defocus electron bunches. Modelling saturation interest...
Reduction of SEY was achieved by surface engineering through laser ablation with a operating at • = 355 nm. It shown that the can be reduced to near or below 1 on copper, aluminium and 316LN stainless steel. The treated surfaces show an increased resistance, wide variation in resistance found de-pending exact treatment details. However, copper similar produced.
The beam delivery system for the linear collider focuses beams to nanometer sizes at its interaction point, collimates halo provide acceptable background in detector and has a provision state-of-the art instrumentation order reach ILC's physics goals. This paper describes design details status of baseline configuration considered reference also lists alternatives.
A 4-rod deflecting structure is proposed as a possible crab cavity design for the LHC high luminosity upgrade. Crab cavities are required upgrade to provide greater bunch overlap in presence of crossing angle, but must fit existing limited space. The has two parallel sections consisting longitudinally opposing quarter-wave rods, where each rod opposite charge from its nearest neighbors. transversely compact because frequency dependent on lengths rather than radius. Simulations were...
The surface resistance Rs of superconducting materials can be obtained by measuring the quality factor an elliptical cavity excited in a transverse magnetic mode (TM010). value has however to taken as averaged over whole surface. A more convenient way obtain Rs, especially which are not yet technologically ready for production, is measure small samples instead. These easily manufactured at low cost, duplicated and placed film deposition analytical tools. commonly used design device consists...
The ILC crab cavity will require the design of an appropriate power coupler. beam-loading in dipole - mode cavities is considerably more variable than accelerating cavities, hence simulations have been performed to establish required external Q. Simulations a suitable coupler were then and verified using normal conducting prototype with tips.
Abstract Accelerator laboratories worldwide are researching copper radio frequency (RF) cavities coated with superconducting thin films to exceed the limits of bulk niobium. The development and RF testing on small planar samples is vital before cavity depositions. A team at Daresbury Laboratory have developed a cost-effective facility using novel 7.8 GHz Choke Cavity for characterisation samples. chokes ensure that no electrical contact required between sample cavity. main advantages are:...