Keyword: detector
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TUYMH03 Recommissioning and Perspectives of VEPP-2000 Complex collider, luminosity, injection, positron 39
 
  • Yu. A. Rogovsky, V.V. Anashin, D.E. Berkaev, A.S. Kasaev, E. Kenzhebulatov, I. Koop, A.A. Krasnov, G.Y. Kurkin, A.N. Kyrpotin, A.P. Lysenko, S.V. Motygin, E. Perevedentsev, V.P. Prosvetov, A.V. Semenov, A.I. Senchenko, P.Yu. Shatunov, Y.M. Shatunov, D.B. Shwartz, A.N. Skrinsky, I.M. Zemlyansky, Yu.M. Zharinov
    BINP SB RAS, Novosibirsk, Russia
  • D.B. Shwartz
    NSU, Novosibirsk, Russia
 
  VEPP-2000 is electron-positron collider exploiting the novel concept of round colliding beams. After three seasons of data taking in the whole energy range of 160-1000 MeV per beam it was stopped in 2013 for injection chain upgrade. The linking to the new BINP source of intensive beams together with booster synchrotron modernization provides the drastic luminosity gain at top energy of VEPP-2000. Recomissioning status, fist results and perspectives of the VEPP-2000 complex will be presented.  
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WEZMH02 Radiocarbon analysis of different samples at BINP AMS ion, extraction, ion-source, vacuum 95
 
  • S. Rastigeev, A.R. Frolov, A.D. Goncharov, V. Klyuev, E.S. Konstantinov, L.A. Kutnykova, V.V. Parkhomchuk, N. Petrischev, A.V. Petrozhitskii
    BINP SB RAS, Novosibirsk, Russia
 
  The accelerator mass spectrometer (AMS) created at BINP is used for biomedical, archaeological and other applications. Present status and experimental results are described.  
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WEPSB025 Application of GPGPUs and Multicore CPUs in Optimization of Some of the MpdRoot Codes framework, GPU, distributed, experiment 416
 
  • A.I. Fatkina, O.O. Iakushkin, N.O. Tikhonov
    Saint Petersburg State University, Saint Petersburg, Russia
 
  Funding: This research was partially supported by SPbU (Saint Petersburg State University) grants 9.37.157.2014, 0.37.155.2014 and Russian Foundation for Basic Research grant (project no. 16-07-01113).
We analyzed the ways to optimize MPDRoot algorithms using existing solutions from external libraries. We also examined the libraries designed to work with graphics accelerators and multi-core CPUs, such as cuRAND, cuFFT and OpenCL FFT. The paper describes the ways to expedite a portion of Kalman filter by transferring it to GPUs or multi-core CPUs using the implementation included into the MPDRoot package.
 
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WEPSB051 Mathematical and Computer Methods of Data Processing in Nuclear Medicine Studies software, photon, GPU, experiment 480
 
  • E.D. Kotina, A.V. Babin, P. V. Bazhanov, D.A. Ovsyannikov, V.A. Ploskikh, Yu. Shirokolobov
    Saint Petersburg State University, Saint Petersburg, Russia
 
  Currently nuclear medicine is a high-tech field. Its development requires solutions of problems related both to the improvement of hardware and computer processing of the information obtained in the course of study. The basic types of hardware of nuclear medicine are gamma cameras and single photon emission computed tomography (SPECT), positron emission tomography (PET) and hybrid scanners (SPECT/CT, PET/ CT). The methods of SPECT data processing include analysis of static, dynamic, tomographic and ECG-gated images. The PET data reconstruction software restores the three-dimensional distribution of the radiopharmaceutical in the body. Performance of iterative methods increases with the use of modern graphics processors. Three-dimensional imaging allows a detailed analysis of the study area. The software also implements a fusion imaging of SPECT/CT, PET/CT scans performed in the same coordinate system. An application of data flow model in medical software development is considered. Web-based imaging front-end of storage and processing system is presented.  
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WEPSB059 Realization of Positron Annihilation Spectroscopy at LEPTA Facility positron, electron, ion, radiation 496
 
  • K. Siemek, V.I. Hilinov, P. Horodek
    JINR/DLNP, Dubna, Moscow region, Russia
  • E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov, A.A. Sidorin
    JINR, Dubna, Moscow Region, Russia
  • M.K. Eseev
    NAFU, Arkhangelsk, Russia
  • A.G. Kobets
    IERT, Kharkov, Ukraine
 
  Positrons are used in materials science to study open volume defects. Several positron annihilation spectroscopy (PAS) techniques exist. These methods are based on detection of the 511 keV gamma quantum. The first method is the analysis of the Doppler broadening of annihilation line and provide information about defect concentration. Both annihilation quanta can be observed. Coincidence observation of two quanta gives additional information about the environment around defect. The second method is based on lifetime concept, which allows to distinguish type of defects. Nowadays, positron beams are of great interest for materials science. Using a low energy, monoenergetic beam it is possible to control the positron penetration depth from the sample surface to a depth of several microns. Thus, the beam can be used to characterize thin films, analysis of surface modification, studying influence of ions on matter etc. This report aims to present a current status of realization and progress in PAS methods at LEPTA facility at JINR.  
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WEPSB065 Development of the Beam Diagnostic System for the Radiobiological Research at the Proton Linear Accelerator I-2 proton, experiment, diagnostics, radiation 508
 
  • A.V. Bakhmutova, A. Golubev, A.V. Kantsyrev, N.V. Markov
    ITEP, Moscow, Russia
 
  Funding: RFBR 16-32-00393
At the present time at ITEP there is a possibility to investigate the biological mechanisms of the low energy protons on living systems on linear accelerator I-2. The unique high current linear accelerator allows to obtain 20 MeV intense proton beams. They could be used for the radiobiological research in a wide range of absorbed doses and for different cell types. Currently some preliminary experiments were made to specify diagnostic equipment required for further investigations. This work presents the main results on the proton beam parameters measurements such as beam current, beam cross section dimension as well as the measurements of the absorbed dose and depth dose distribution using different types of detectors.
 
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THPSC051 The Magnetic Energy Analyzer for Electron Beam Of LUE-200 Linac of IREN Facility electron, vacuum, target, linac 647
 
  • A.P. Sumbaev, V.I. Shokin, N.I. Tarantin
    JINR, Dubna, Moscow Region, Russia
 
  Theses for a base substantiation, results of the calculation for the electron optical parameters and design features of the magnetic energy analyzer for the beam of the electron LUE-200 linac are presented. The static dipole magnet with homogeneous transverse field and with a combined functions (the functions of a spectrometer and of a spectrograph) established after the second accelerating section, allows to spend measurements in a wide energy range of the analyzed particles up to 224 MeV with the instrumentation resolution not worse ± 5 %.  
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THPSC056 Proposal to Symmetric Quench Detection at Superconducting Elements by Bridge Scheme Usage booster, superconductivity, collider, acceleration 662
 
  • E.V. Ivanov
    JINR, Dubna, Moscow Region, Russia
  • A.O. Sidorin, A.L. Svetov
    JINR/VBLHEP, Dubna, Moscow region, Russia
 
  In the frame of the NICA project two new superconducting accelerators will be constructed - the Booster and the NICA collider. Specialized facility for manufacturing and testing of the SC magnets for the NICA and FAIR projects is under development at JINR. Proposal to quench detection system for these and similar facilities is described in this paper.  
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THPSC060 The Longitudinal Distribution and Bunch Length Measurements at VEPP-2000 Collider collider, cavity, impedance, electron 673
 
  • Yu. A. Rogovsky, E. Perevedentsev, V. Volkov, Yu.M. Zharinov
    BINP SB RAS, Novosibirsk, Russia
 
  The paper describes the bunch length measurement system for VEPP-2000 collider, equiped with optical analysers based on LI-602 dissector, which provides permanent measurements of the longitudinal beam profile. Potential well distorsion lengthening was measured at different bunch currents for the energies below 500 MeV. First measurements reveals the presence of microwave instabilty with turbulent emittance growth. The thresholds of these processes was used to estimate the values of reactive part of the longitudinal impedance. Measured energy loss factors was compared with computer simulations for the RF cavity. All results will be discussed and further estimations will be given.  
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THPSC064 Monitoring of Low Intensity Ion Beams at FLNR Accelerator Complex ion, radiation, cyclotron, diagnostics 683
 
  • S. Mitrofanov, Yu.G. Teterev
    JINR, Dubna, Moscow Region, Russia
  • A.I. Krylov
    JINR/FLNR, Moscow region, Russia
 
  FLNR JINR host experimental researches in wide area of applied science, including medical, biological and radiation hardness investigations, where the beam diagnostics plays the key role. We provide beam monitoring at all stages of the experiment: inside the cyclotron, beam transport and ion beam profile visualization close to the physical target. The detailed overview of beam control and diagnostic solutions used in FLNR JINR for the low intensity and highly charged ion beams parameters evaluation will be presented.  
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THPSC065 Diagnostics of Accelerator Beams by the Dependence of the Vavilov-Cherenkov Radiation Intensity on the Refractive Index of the Radiator "n" electron, photon, radiation, microtron 686
 
  • K.A. Trukhanov
    SSC RF- IBMP RAS, Moscow, Russia
  • A.I. Larkin
    NRNU, Moscow, Russia
  • V.I. Shvedunov
    MSU, Moscow, Russia
 
  The report presents the results of development the method TLSH* for finding of the particle speed distribution (PSD) in beams of accelerators. PSD is deduced from the Volterra integral equation of the first kind with the right part, which is by the dependence of Cherenkov radiation intensity (ChRI) from n, experimentally obtained for the given beam. PSD is the second derivative of ChRI. The problem of stability of the second derivative is solved by attracting the priori information (for example, nonnegative of the solution). Using optical dispersion of radiator is discussed. It enables to find PSD even in the single cluster of particles. The possibility of determining the PSD in the cross section beam is discussed too. The method also enables to find PSD upon a noticeable transverse speed of the particles in the beam. The method is virtually non-destructive in many cases.
*Measurement of the distributions of particle velocity in the accelerator beam on the basis of the Vavilov-Cherenkov radiation at optical and microwave ranges. Trukhanov K. A., Larkin A. I., Shvedunov V. I. Izv. RAS. Ser. Phys. 2010. V. 74, No. 11, Pp. 1665-1668.
 
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THPSC068 Integrated Inspection Method of Motor Transports Based on Acceleration Technology neutron, controls, radiation, electron 692
 
  • A.M. Fialkovsky, P.O. Klinovsky, K.V. Kotenko, V.P. Malyshev, T.R. Virkunen
    NIIEFA, St. Petersburg, Russia
 
  Integrated inspection method of motor transports was suggested based on linear electron accelerator and neutron generator, which helps to detect substances forbidden for carrying, including explosives, narcotic drugs and fissionable materials. The linear high-frequency electron accelerator is a source of X-ray bremsstrahlung. The result of scanning is an introscopical image of a motor transport with color-selected suspicious substances. The neutron activation analysis of these substances with neutron generator as a neutron source lets detect elemental substance composition as well as identify explosives or narcotic drugs. This article contains accelerator specifications, which lets implement suggested method.  
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THPSC080 Data Processing Automatization for Gamma-Spectrometry Diagnostics of Neutron Accelerator BNCT neutron, experiment, diagnostics, software 718
 
  • T.A. Bykov
    Budker INP & NSU, Novosibirsk, Russia
  • D.A. Kasatov
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: The study was supported by the grants from the Russian Science Foundation (Project No.14-32-00006), Budker Nuclear Institute and Novosibirsk State University.
There is the accelerator-tandem at the Nuclear physics institute in Novosibirsk which is suitable for malignancies treatment such as glioblastoma and melanoma using BNCT methods. There are different gamma spectrometry diagnostics which apply under this project. One of these is used to determine the parameters of the neutron beam. The method is to irradiate a set of activation foils with neutrons. Then measure the gamma-spectrum of foils using gamma detector. Based on these data it can be calculated the activity of foil, as well as the amount and the energy of neutrons. For data processing of these diagnostics there was developed a software which is used for convenient display of gamma-spectrometer data and the activity of the foil. Software allows setting a canal calibration and the sensitivity calibration which is needed to calculate the foil activity.
 
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