Upgrade of the Detector for Imaging of Explosions
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): L.I. Shekhtman, V.M. Aulchenko, V.N. Kudryavtsev, V.D. Kutovenko, V.M. Titov, V.V. Zhulanov, E.L. Pruuel, K.A. Ten, B.P. Tolochko Methods of dynamic imaging of explosions at a synchrotron radiation (SR) beam and small-angle X-ray scattering experiments with exploding samples are being developed in the Siberian Synchrotron Radiation Center (SSRC) at the Budker Institute of Nuclear Physics for more than fifteen years. The detector for imaging of explosions (DIMEX) was developed for these purposes and successfully operating at the beam line 0 at t...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Status of Dynamic Diagnostics of Plasma Material Interaction Based on Synchrotron Radiation Scattering at the VEPP-4 Beamline 8
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): A.S. Arakcheev, A.I. Ancharov, V.M. Aulchenko, S.V. Bugaev, A.V. Burdakov, A.D. Chernyakin, O.V. Evdokov, A.A. Kasatov, A.V. Kosov, P.A. Piminov, S.V. Polosatkin, V.A. Popov, M.R. Sharafutdinov, L.I. Shekhtman, A.N. Shmakov, A.A. Shoshin, D.I. Skovorodin, B.P. Tolochko, A.A. Vasilyev, L.N. Vyacheslavov, V.V. Zhulanov Hihg-power flows of plasma cause mechanical destruction of materials via non-uniform deformation and stresses. The possibility of synchrotron radiation scattering diagnostics of deformation is discussed. The experiments...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Simulation of Propagation and Transformation of THz Bessel Beams with Orbital Angular Momentum
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): Yulia Choporova, Boris Knyazev, Mikhail Mitkov, Natalya Osintseva, Vladimir Pavelyev Recently, terahertz Bessel beams with angular orbital momentum (“vortex beams”) with topological charges l = ±1 and l = ±2 were generated for the first time using radiation of the Novosibirsk free electron laser (NovoFEL) and silicon binary phase axicons (Knyazev et al., Phys. Rev. Letters, vol. 115, Art. 163901, 2015). Such beams are prospective for application in wireless communication and remote sensing. In present paper, numerical modelling of generation ...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Fabrication of High-effective Silicon Diffractive Optics for the Terahertz Range by Femtosecond Laser Ablation
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): V.S. Pavelyev, M.S. Komlenok, B.O. Volodkin, B.A. Knyazev, T.V. Kononenko, V.I. Konov, V.A. Soifer, Yu.Yu. Choporova Comparison of the two laser sources (UV nanosecond and IR femtosecond) used for the formation of micro-relief at the silicon surface showed the advantage of the second one. A four-level silicon diffractive THz Fresnel lens has been fabricated by laser ablation at high repetition rate (f = 200kHz) of femtosecond Yb:YAG laser. Features of the lens were investigated in the beam of the Novosibirsk free electron laser at the wavelength...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Manufacturing of Self-bearing Microstructures of the Pseudo-metallic Type for Diffraction Experiments in the Terahertz Range
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): B.G. Goldenberg, B.A. Knyazev, A.N. Gentselev, A.G. Lemzyakov, S.G. Baev Specific features of the LIGA-technology methods elaborated at the Siberian Synchrotron and Terahertz Radiation Centre (SSTRC, BINP SB RAS) and fabrication of terahertz filters and optical elements based on high-aspect self-bearing microstructures of the pseudo-metallic type are described. The essence of the method consists in deep X-ray lithographic patterning of an organic glass (PMMA) substrate followed by covering its entire surface with a thin layer of metal (silver). The...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Wave-vector Spectrum of Monochromatic Terahertz Surface Plasmon Polaritons on Real Surfaces
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): V.V. Gerasimov, B.A. Knyazev, A.К. Nikitin Experiments at the Novosibirsk free electron laser demonstrating that monochromatic terahertz surface plasmon-polaritons (SPPs) on a real metal surface have a rather wide-band spectrum of their wave-vector are described. The fact was evidenced by detection of bulk waves radiated from the SPP track and by means of SPPs reflection from a mirror installed normally to the sample surface or tilted to it. The cause of the wave-vector splitting is supposed to be SPPs scattering on imperfections of the surface. Thi...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
First Terahertz-range Experiments on Pump – Probe Setup at Novosibirsk free Electron Laser
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): Yulia Yu. Choporova, Vasily V. Gerasimov, Boris A. Knyazev, Sergey M. Sergeev, Oleg A. Shevchenko, Roman Kh. Zhukavin, Nikolay V. Abrosimov, Konstantin A. Kovalevsky, Vladimir K. Ovchar, Heinz-Wilhelm Hübers, Gennady N. Kulipanov, Valery N. Shastin, Harald Schneider, Nikolay A. Vinokurov A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser. The laser emits a tunable monochromatic terahertz radiation. To prove the proper system operation, we investigated the time-resolved absorption of a sample of n...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Deflection of Terahertz Vortex Beam in Nonpolar Liquids by Means of Acousto-optics
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): P.A. Nikitin, V.B. Voloshinov, V.V. Gerasimov, B.A. Knyazev Acousto-optic diffraction of terahertz vortex beams was studied for the first time. It was shown that nonpolar liquids are the most promising acousto-optic media in the terahertz range. Possibility of vortex beam wide-angle deflection was demonstrated. Experimental research was performed for cyclohexane, hexane and white spirit. The experiments were carried out at the Novosibirsk free-electron laser. (Source: Physics Procedia)
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Influence of Novosibirsk Terahertz free Electron Laser Radiation on the Morphology of Chicken Hepatocytes
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): E.L. Zelentsov, A.S. Kozlov, A.K. Petrov, S.B. Malyshkin, O.A. Shevchenko The present report examines the impact of terahertz radiation of Novosibirsk free electron laser on the state of membrane and morphology of hepatocytes and erythrocytes in vitro. The aim of this work is a detailed study of the effects of terahertz laser radiation on cells, identification of the specific membrane effects, and comparison with similar effects to the erythrocytes. (Source: Physics Procedia)
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Observation of the Formation of 0- π Pulses in Rotation Spectra of HCN and HBr
We present the first experimental study of the formation of 0-π pulses in the far infrared region. Experiments were made in rotation spectra of HCN and HBr molecules using a Novosibirsk terahertz free electron laser (NovoFEL) as a source of optical pulses and ultra-fast Schottky diode as detector. Transformation of the shape of 0-π pulses was explored within a wide range of optical density. Throughout the range of experimental conditions, the observed pulse shape is well described by the analytical formula of Grisp (Phys. Rev. A 1 (1970) 1604). The observed effect can be used for time-domain measurements of the oscillato...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Formation of Nanosized Metal Hydrosols under the Influence of Novosibirsk Terahertz free Electron Laser Radiation
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): A.S. Kozlov, A.K. Petrov, V.V. Annenkov, E.P. Chebykin, O.A. Shevchenko The present report describes a new phenomenon - short-term exposure of water with focused terahertz radiation of free electron laser leads to the formation of nanoparticle suspension (hydrosol). Composition of the particles formed corresponds to the material of metal containers used in the experiment. Fractional and elemental composition of the particles was determined by atomic force (AFM), scanning electron microscopy with elemental analyzer (SEM EDAX), and the results of mas...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Hybrid Magnet Wiggler for SR Research Program at VEPP-4M
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): G. Baranov, P. Vobly, E. Levichev, P. Piminov, K. Zolotarev, Y. Kolokolnikov, S. Shiyankov, N. Havin, Y. Pupkov, V. Svishev, G. Denis, A. Utkin, V. Zuev A compact hybrid magnet wiggler is under development for the VEPP-4 SR research program. The wiggler allows increasing the photon flux two orders of magnitude at a beam energy of 4.5 GeV in the spectrum range of 60-100 keV. The magnet consists of conventional coils, which generate a magnetic field, and permanent magnet insertions, which concentrate the flux. This solution increases the fiel...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
The Project of a Magnetic System for Compact x-ray Light Source
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): Georgii Shamuilov, Konstantin Zolotarev The low-emittance lattice cell concept with usage of superconducting bending magnets with longitudinal field gradient and anti-bends is applied to develop a compact storage ring for x-ray light source of high brilliance. Its synchrotron radiation generation potential is compared with existing compact light source. (Source: Physics Procedia)
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Diagnostics of Local Electron Beam Losses in Microtron-recuperator on Novosibirsk Free Electron Laser Beamline via Detection of Induced X-rays
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): E.N. Dementiev, Yu.I. Mondich, S.S. Serednyakov, M.A. Scheglov The Novosibirsk Free Electron Laser (NovoFEL) is based on a four-turn microtron-recuperator. To ensure its stable operation and radiation generation, it is necessary to provide a stable mode of electron beam recirculation and minimize beam losses on the vacuum chamber wall on all the beam way in the accelerator beamline. To this end it is necessary to know the longitudinal distribution of these losses along the beamline. A system for registration of beam losses was created. The system ap...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
Power Supply System for Corrector Magnets of the European X-Ray Free-electron Laser
Publication date: 2016 Source:Physics Procedia, Volume 84 Author(s): O.V. Belikov, V.R. Kozak, A.S. Medvedko The total length of the European XFEL is 3.4 km. The electron beam parameters are corrected by about 300 corrector magnets, each powered by an individual power supply. BINP performed the development, production and delivery of the power supply system for the corrector magnets. For the powering of the corrector magnets, seven types of precision power supplies with output currents of up to 10 A and output voltages of up to 70 V were developed. To ensure high reliability of the power supply system BINP developed a...
Source: Physics Procedia - December 12, 2016 Category: Physics Source Type: research
