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Перегляд за темою "Experimental methods and processing of data"

Репозиторій DSpace/Manakin

Перегляд за темою "Experimental methods and processing of data"

Сортувати за: Порядок: Результатів:

  • A criterion for DT gas thermonuclear ignition by a focusing spherical shock wave 
    Aleksandrova, A.G.; Popov, N.A.; Shcherbakov, V.A. (Вопросы атомной науки и техники, 2003)
    Conditions for thermonuclear ignition of deuterium-tritium (DT) gas by a focusing ideally symmetric shock wave are estimated. The wave is focused to the center and then reflects. In so doing a higher-pressure zone is ...
  • Activation of ⁹³Nb nuclei on the linac LUE-40 of RDC “Accelerator” and determination of photonuclear reaction cross-sections 
    Vodin, O.M.; Deiev, O.S.; Olejnik, S.M. (Вопросы атомной науки и техники, 2019)
    The bremsstrahlung spectra of medium-energy electrons (30…100 МeV) were calculated in GEANT4. Crosssections for photonuclear reactions were calculated in TALYS1.9. A convolution over the energy of the crosssections of one- ...
  • Application of the spectral method to stochastic filter analysis 
    Kharchenko, O.I. (Вопросы атомной науки и техники, 2019)
    The problem of standing out a signal from an additive mixture of a harmonic signal and white Gaussian noise is considered. The analysis is based on the phenomenon of stochastic resonance (SR), which consists in amplifying ...
  • Approximation of peaks in γ-spectra by Gaussian-like analytic functions 
    Berezhnoy, A.Yu. (Вопросы атомной науки и техники, 2021)
    The program processing γ-spectra named “GAMMAPEAKS”, was elaborated. This program can approximate peaks in γ-spectra with different Gaussian-like functions. The common Gaussian, the variable variance Gaussian and the ...
  • Calculation of the Molière radius for various configurations of an electromagnetic sampling calorimeter ECaL SPD NICA 
    Kovtun, V.E.; Malykhina, T.V. (Вопросы атомной науки и техники, 2021)
    One of the main tasks of the electromagnetic calorimetry of the SPD setup is effective π⁰-γ separation in the energy range from 50 MeV to 10 GeV. Therefore, the current task is to optimize the design of the module cells ...
  • Calibration of a system for on-line monitoring of electron energy and absorbed dose at an industrial accelerator LU-10 
    Pomatsalyuk, R.I.; Tytov, V.Yu.; Titov, D.V.; Uvarov, V.L.; Shevchenko, V.A. (Вопросы атомной науки и техники, 2020)
    Particle beam energy and absorbed dose are critical parameters of product processing at industrial electron accelerators. For on-line monitoring of those parameters, a method based on measuring of distribution of the charge ...
  • Cross-sections for photonuclear reactions ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb in the end-point bremsstrahlung energies 36…91 MeV 
    Vodin, A.N.; Deiev, O.S.; Timchenko, I.S.; Olejnik, S.N.; Kachan, A.S.; Korda, L.P.; Kuplennikov, E.L.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A.; Pilipenko, N.N.; Trubnikov, V.S. (Вопросы атомной науки и техники, 2020)
    The flux-weighted averaged over the energy range of bremsstrahlung spectrum from reaction threshold up to the maximum energy of γ-ray cross-sections <σ (E)> of the ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb photonuclear reactions ...
  • Cross-sections in photonuclear reactions with multiple neutron emission 
    Bezshyyko, O.A.; Vodin, O.M; Golinka-Bezshyyko, L.O.; Kotenko, A.V.; Kushnir, V.A.; Lubynets, O.V.; Mitrochenko, V.V.; Olejnik, S.M.; Perezhogin, S.A.; Vallerand, C. (Вопросы атомной науки и техники, 2019)
    The energy dependence of the reaction cross-sections A(γ,xn)(A-xn) was studied in the energy range 19...70 MeV, i.e. beyond Great Dipole Resonance (GDR) region. Experimental data were taken from international database EXFOR ...
  • Cross-sections of photonuclear reactions on ⁿᵃᵗMo targets at end-point bremsstrahlung energy up to Eᵧₘₐₓ = 100 MeV 
    Vodin, A.N.; Deiev, O.S.; Timchenko, I.S.; Olejnik, S.M.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.O.; Bocharov, V.O. (Вопросы атомной науки и техники, 2021)
    Experiments to determine the yields and bremsstrahlung flux-averaged cross-sections ⟨σ(Еγmax)⟩ of photonuclear reactions on the natural Mo targets were performed on the beam from the electron linear accelerator LUE-40 with ...
  • Determination of the ²³⁴U isotope content in uranium-bearing materials using high-resolution gamma spectrometry 
    Kutniy, D.V.; Burdeinyi, D.D.; Savchenko, N.N. (Вопросы атомной науки и техники, 2021)
    The paper presents an overview of the research into the available non-destructive methods of determining the ²³⁴U isotope content in uranium-bearing materials. An alternative approach to a problem of detector calibration ...
  • Determination of the average absorbed energy of electrons beam in objects at radiation processing 
    Lazurik, V.T.; Lazurik, V.M.; Popov, G.Ph.; Zimek, Z. (Вопросы атомной науки и техники, 2019)
    A new conservative computational procedure is proposed for calculating the average absorbed energy of electron radiation in objects undergoing radiation processing. Semi-empirical relationships were obtained and software ...
  • Development and application of a silicon coordinate detectors 
    Kulibaba, V.I.; Maslov, N.I.; Naumov, S.V.; Ovchinnik, V.D.; Potin, S.M.; Starodubtsev, A.F. (Вопросы атомной науки и техники, 2003)
    An attempt is made to consider general approach and the techniques for development, investigation and application of multichannel silicon coordinate detectors.
  • Digital processing of photos from a 4π track detector 
    Afanasiev, S.N.; Afanasieva, I.A. (Problems of Atomic Science and Technology, 2022)
    A measuring complex with a digital data bank of stereo photos of photonuclear reactions on ⁴He, ¹²C, ¹⁴N, and ¹⁶O nuclei got from a 4π track detector has been created. The file name was formatted into a certain type of ...
  • Digital study of the ¹⁴N(γ,2α)⁶Li reaction 
    Afanasiev, S.N.; Afanasieva, I.O. (Problems of Atomic Science and Technology, 2023)
    A digital measurement technique of points coordinates along the tracks was developed for the stereo frame photonuclear reaction data bank created in KIPT. The main procedure is the analysis of pixel intensity in the area ...
  • Effect of energy leakage on the energy resolution of E.M. sampling calorimeters 
    Gavrishchuk, O.P.; Kovtun, V.E.; Malykhina, T.V. (Вопросы атомной науки и техники, 2021)
    The electromagnetic sampling calorimeters of the SPD experiment (NICA collider) are being investigated by Monte Carlo method. The simulation is used to study in detail the influence of energy leakages from the module on ...
  • Electron beam Møller polarimeter at hall A, JLab 
    Chudakov, E.A.; Glamazdin, A.V.; Gorbenko, V.G.; Levchuk, L.G.; Pomatsalyuk, R.I.; Sorokin, P.V. (Вопросы атомной науки и техники, 2002)
    As a part of the spin-physics program at the Thomas Jefferson National Accelerator Facility (JLab), a Møller polarimeter has been developed to measure the polarization of electron beam of energies between 0.8 and 6.0 GeV. ...
  • Estimation of gross-structure parameters of giant dipole resonance: 1. A method 
    Uvarov, V.L.; Zakharchenko, A.A. (Вопросы атомной науки и техники, 2021)
    Available data on photonuclear cross-sections, both measured experimentally and obtained on the basis of theoretical models, are characterized sometimes by a considerable spread. In work, a simple method for the estimation ...
  • Experimental studies of the nuclear-physical characteristics of the extended uranium target irradiated by relativistic protons, deutrons and ¹²C nuclei 
    Zhadan, A.A.; Sotnikov, V.V.; Voronko, V.A.; Baldin, A.A.; Tyutyunnikov, S.I.; Bukhal, O.V.; Husak, K.V.; Zhuk, I.V.; Zhivkov, P. (Вопросы атомной науки и техники, 2020)
    In 2011-2017 in the framework of the international collaboration project “Energy and Transmutation of RAW”, a series of experimental studies on the deep subcritical uranium assembly QUINTA were carried out. The massive ...
  • Forward and backward electron yield ratio for α-particle induced emission from different materials 
    Zhurenko, V.P.; Kononenko, S.I.; Kalantaryan, O.V.; Avotin, S.S.; Rokhmanov, N.Ya. (Вопросы атомной науки и техники, 2021)
    In this work, the ratio of forward and backward electron yields for emission induced by the isotropic flux of α-particles from zinc was measured. On the basis of the measured values and experimental data obtained in earlier ...
  • HF radiation pulse source locating in DIN-2K accelerator 
    Druj, O.S.; Yegorenkov, V.V.; Marchenko, S.V.; Yuferov, V.B. (Вопросы атомной науки и техники, 2022)
    Experiments aimed at locating the source generating an HF pulse during the opening of the plasma switch and leading to explosive electron emission at the cathode were performed on DIN-2K pulse accelerator. It is demonstrated ...