A5048410252- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Advanced X-ray Imaging Techniques
- Laser-Plasma Interactions and Diagnostics
- Gyrotron and Vacuum Electronics Research
- Photocathodes and Microchannel Plates
- Magnetic confinement fusion research
- Particle physics theoretical and experimental studies
- Distributed and Parallel Computing Systems
- X-ray Spectroscopy and Fluorescence Analysis
- Photonic and Optical Devices
- Advancements in Photolithography Techniques
- Enzyme Structure and Function
- Atomic and Subatomic Physics Research
- Electromagnetic Simulation and Numerical Methods
- Laser Design and Applications
- Scientific Computing and Data Management
- Semiconductor materials and devices
- Plasma Diagnostics and Applications
- Advanced Data Storage Technologies
- Diamond and Carbon-based Materials Research
- Crystallography and Radiation Phenomena
- Medical Imaging Techniques and Applications
Deutsches Elektronen-Synchrotron DESY
2018-2025
Volgograd State University
2021
European X-Ray Free-Electron Laser
2014-2018
European Organization for Nuclear Research
2007-2012
Royal Holloway University of London
2005-2008
Linac Coherent Light Source
2008
The PETRA IV project aims at upgrading the present synchrotron radiation source III DESY into an ultralow-emittance source. Being diffraction limited up to X-rays of about 10 keV, will be ideal for three-dimensional X-ray microscopy biological, chemical and physical processes under realistic conditions length scales from atomic dimensions millimetres time down sub-nanosecond regime. In this way, it enable groundbreaking studies in many fields science industry, such as health, energy, earth...
In this contribution, we present the design of a resonant slow extraction based on radio-frequency knockout (rf-KO) scheme, where make use transverse resonance islands bucket (TRIB) optics. The generation TRIB optics is presented in two example lattices, which are considered for potential upgrade current booster at DESY. studies motivated to potentially supply high energy electron beams physics beamline users. Simulations show an efficiency excess 90% with septum blade thickness <a:math...
It is a truth universally acknowledged that space-charge effects in ultrarelativistic electron storage rings are irrelevant due to the steep inverse dependence of their strength on Lorentz factor. Yet, with push toward diffraction limit, state-of-the-art light sources approaching point where emittance becomes so small force can no longer be ignored. In this paper, we demonstrate how influence injection dynamics, dynamical aperture, and collective beam stability using example...
This paper presents a novel approach for constructing neural networks which model charged particle beam dynamics. In our approach, the Taylor maps arising in representation of dynamics are mapped onto weights polynomial network. The resulting network approximates dynamical system with perfect accuracy prior to training and provides possibility tune on additional experimental data. We propose symplectic regularization such that always restricts trained Hamiltonian systems significantly...
Accurate measurement of the beam phase space is essential for next generation electron accelerators. A scheme optics optimization and matrix reconstruction algorithms diagnostics section delivery system International Linear Collider (ILC) based on laser-wire profile monitors are discussed. Possible modes operation together with their corresponding performance presented. Based these results, prospects reconstructing ILC emittance from representative size measurements evaluated.
Laser-plasma accelerators outperform current radio frequency technology in acceleration strength by orders of magnitude. Yet, enabling them to deliver competitive beam quality for demanding applications, particularly terms energy spread and stability, remains a major challenge. In this Letter, we propose combine bunch decompression active plasma dechirping drastically improving the profile stability beams from laser-plasma accelerators. Realistic start-to-end simulations demonstrate...
Machine learning (ML) is a subfield of artificial intelligence. The term applies broadly to collection computational algorithms and techniques that train systems from raw data rather than priori models. ML are now technologically mature enough be applied particle accelerators, we expect will become an increasingly valuable tool meet new demands for beam energy, brightness, stability. intent this white paper provide high-level introduction problems in accelerator science operation where...
A hard X-ray Split and Delay Line (SDL) under development for the Materials Imaging Dynamics (MID) station at European X-Ray Free-Electron Laser (XFEL.EU) is presented. This device will provide pairs of pulses with a variable time delay ranging from −10 ps to 800 in photon energy range 5 10 keV. Throughput simulations SASE case indicate total transmission 1.1% or 3.5% depending on operation mode. In self-seeded XFEL.EU that can be improved more than 11%.
The present state of progress in laser wakefield acceleration encourages considering it as a practical alternative to conventional particle accelerators. A promising application would be use laser-plasma accelerator an injector for synchrotron light source. Yet, the energy spread and jitter beam pose significant difficulty efficient injection. In this paper, we propose design prototype deliver 500 MeV low-intensity electron bunches DESY-II synchrotron. utilizes presently available...
A collimation system performance study includes several types of computations performed by different codes. Optics calculations are with codes such as MADX, tracking studies including additional effects wakefields, halo and tail generation, dynamical machine alignment done PLACET, energy deposition can be studied BDSIM. More detailed hadron production in the beam interaction collimators better Geant4 FLUKA. procedure has been developed that allows one to perform a single using...
For modern linac- and storage-ring-based light sources certain amount of empirical tuning is used to reach ultimate performance. The possibility perform such by automatic methods has now been demonstrated several authors (e.g. I.Agapov et al. in proc IPAC 2015). In this paper we present the progress development our optimisation software based on OCELOT its applications SASE FEL optimization at FLASH LCLS, potential for storage ring optimization.
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.
Modern FEL facilities such as the European XFEL will serve a large number of users, thus understanding and optimizing their performance parameters output power is important. In this work we describe statistical approach to optimization under assumption that possibility modelling limited by uncertainties. We present experience SASE radiation for FLASH discuss how results empirical tuning can be fed back into model used in simulations.
At DESY the Synchrotron Light Source PETRA III offers scientists outstanding opportunities for experiments with hard X-rays of exceptionally high brilliance since 2009. Research activities have been started to upgrade ultra-low emittance source IV, which will be diffraction limited up X-ray range. Therefore future light IV ideal 3D microscopy biological, chemical, and physical processes under realistic conditions at length scales from atomic dimensions millimeters. The lattice design is...
Since 2016 DESY has been pursuing R&D towards upgrading its PETRA synchrotron light source to a fourth-generation machine, IV, which is expected start operation in 2027. The conceptual design of 6 GeV seven-bend-achromat-based lattice with an approx. 10pm emittance along critically important technical systems completed. We will present the status project, parameter space facility, and beam dynamics issues for main ring.
Quantum diffusion effects in undulator radiation semiclassical approximation are considered. Short-term on the electron beam motion discussed and it is shown that approaches based with drift-diffusion coefficients derived from or bending magnet spectrum, Poisson statistics spectrum defined by local beding field, all lead to similar results terms of energy spread for cases practical interest. An analytical estimate influence quantum derived.