Leonid Rivkin
A5031528614- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Advanced X-ray Imaging Techniques
- Particle Detector Development and Performance
- Gyrotron and Vacuum Electronics Research
- Particle physics theoretical and experimental studies
- Laser-Plasma Interactions and Diagnostics
- Crystallography and Radiation Phenomena
- Medical Imaging Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Advancements in Photolithography Techniques
- Pulsed Power Technology Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced Electron Microscopy Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- Nuclear Physics and Applications
- Muon and positron interactions and applications
- High-Energy Particle Collisions Research
- Image Processing and 3D Reconstruction
- Laser Design and Applications
- Distributed and Parallel Computing Systems
- International Science and Diplomacy
- Photocathodes and Microchannel Plates
Paul Scherrer Institute
2013-2023
École Polytechnique Fédérale de Lausanne
2013-2020
Swiss Light Source
2007
European Organization for Nuclear Research
1990
The SwissFEL X-ray Free Electron Laser (XFEL) facility started construction at the Paul Scherrer Institute (Villigen, Switzerland) in 2013 and will be ready to accept its first users 2018 on Aramis hard branch. In following sections we summarize various aspects of project, including design soft branches accelerator, results performance simulations, details photon beamlines experimental stations, our commissioning results.
The Paul Scherrer Institute is planning the construction of a hardx-ray free-electron laser, SwissFEL, by 2016, which will produce intense, ultrashort pulses transversely coherent radiation in wavelength range 0.1-7 nm, with future extensions to cover 0.08-30 nm.Special design considerations include (a) compact construction, compatible status national facility, (b) uniform 100 Hz repetition rate, well suited sample manipulations and detector readout, (c) flexible tuning electron beam energy...
The accurate measurement of the arrival time a hard X-ray free electron laser (FEL) pulse with respect to is utmost importance for pump-probe experiments proposed or carried out at FEL facilities around world. This manuscript presents latest device meet this challenge, THz streak camera using Xe gas clusters, capable measurements an estimated accuracy several femtoseconds. An experiment performed SACLA demonstrates performance photon energies between 5 and 10 keV variable beam parameters.
The European Particle Physics Strategy Update (EPPSU) process takes a bottom-up approach, whereby the community is first invited to submit proposals (also called inputs) for projects that it would like see realised in near-term, mid-term and longer-term future. National inputs as well from Laboratories are also an important element of process. All these then reviewed by Preparatory Group (PPG), whose role organize Symposium around submitted ideas prepare discussion on importance merits...
The two-color operation of free electron laser (FEL) facilities allows the delivery two FEL pulses with different energies, which opens new possibilities for user experiments. Measuring arrival time both relative to external experimental and each other improves temporal resolution experiments using beam helps monitor performance machine itself. This work reports on first simultaneous measurement times hard X-ray THz streak camera. pulses, delay between them was calculated compared set...
The experiment described in this paper is the first study of response a static tungsten powder sample to an impinging high energy proton beam pulse. was carried out at HiRadMat facility CERN. Observations include speed videos induced perturbation as well data from laser Doppler vibrometer measuring oscillations container. A comparison with previous analogous which studied interaction mercury made.
In the frame of FCC study we are designing a 27 TeV hadron collider in LHC tunnel, called High Energy (HE-LHC). The HE-LHC can be realized by replacing LHC's 8.33 T niobium-titanium dipole magnets with 16 niobium-tin developed for FCC-hh. A high-quality beam available from upgraded injector complex and significant radiation damping allow achieving challenging target values both peak integrated luminosity required particle physics. Tunnel integration determines maximum outer size magnet...
Dielectric Laser Acceleration (DLA) achieves the highest gradients among structure-based electron accelerators. The use of dielectrics increases breakdown field limit, and thus achievable gradient, by a factor at least 10 in comparison to metals. Experimental demonstrations DLA 2013 led Accelerator on Chip International Program (ACHIP), funded Gordon Betty Moore Foundation. In ACHIP, our main goal is build an accelerator silicon chip, which can accelerate electrons from below 100 keV above 1...
The FEMTO source under construction at the μXAS beamline is designed to enable tunable time‐resolved laser/x‐ray absorption and diffraction experiments in photochemistry condensed matter with ps‐ sub‐ps resolution. design takes advantage of (1) highly stable operation SLS storage ring, (2) reliable high harmonic small gap, short period undulators generate hard x‐rays energy 3–18 keV 2.4 GeV beam energy, (3) progress power, repetition rate fs solid‐state laser technology employ laser/e‐beam...
Having accurate and comprehensive photon diagnostics for the X-ray pulses delivered by free-electron laser (FEL) facilities is of utmost importance. Along with various parameters beam (such as energy, intensity, etc.), pulse length measurements are particularly useful both machine operators to measure monitor stability performance, users carrying out pump-probe experiments at such better understand their measurement results. One most promising techniques used THz streak camera which capable...
We report on the feasibility and expected performance of a sub-picosecond X-ray source at Swiss Light Source (SLS), based electron-beam slicing method. This method has recently been demonstrated Advanced (ALS), using bending magnet to produce ultrafast optical pulses. To improve flux such for user experiments, we have studied its realization both in hard soft regime, employing small gap insertion devices (IDs) installed either one or two successive straight sections. The most favourable...
One of the challenges actinic metrology tools for EUV lithography is availability light sources with high brightness, stability, and availability. In particular, patterned mask inspection on reticles considered an essential tool ecosystem it requires source brightness. We present design a compact accelerator-based producing radiation high-brightness applications in semiconductor industry. Our based well-established components principles. The specifications required achieved using short...
Machine learning techniques have been used extensively in several domains of Science and Engineering for decades. These powerful tools applied also to the domain high-energy physics, analysis data from particle collisions, years already. Accelerator however, has not started exploiting machine until very recently. Several activities are flourishing this domain, view providing new insights beam dynamics circular accelerators, different laboratories worldwide. This is, instance, case CERN Large...
Abstract The Swiss Light Source (SLS) is a synchrotron radiation user facility (2000 users/year, 18 beamlines, 5000 hrs/year) in operation at Paul Scherrer Institut (PSI) since 2001. Figure 1 presents schematic view. Notes 1This lattice concept has been further elaborated for latest low emittance light sources like MAX-IV [Citation2], where the reduced magnet gap exploited to increase gradients. 2The research leading these results received funding from European Commission under...