[en] Results of theoretical investigation into spectrometer resolution of different types of ionizing radiaton are presented. Notions of spectrometric system and its information quality are introduced. The problem of the main types of spectrometric systems is sonsidered. A non-traditional approach to assesement of resolution is formulated, general mathematical formulation of the problem for assesement of resolution is given

[en] Characteristics of radionuclide neutron sourses of ²⁵²Cf base with the activity from 10⁶ to 10⁹ n/s have been investigated. Energetic distributions of neutrons and gamma-radiation have been presented. The results obtained have been compared with other data available. The hardness parameter of the neutron spectrum for the energy range from 3 to 15 MeV is 1.4 +- 0.02 MeV

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No abstract available

[en] The prospects of development of the multisphere neutron spectroscopy are analyzed. Presented are the results of investigations into moderization of the multisphere spectrometer through development of new, more effective methods of spectra unfolding, modernization of the spectrometer design with the help of semiconductor detectors, and development of algorithms and computer codes to calculate the sensitivity functions. The numerical experiment has shown that the best results in unfolding a wide class of spectra are obtained by the method of directed choice, that proves theoretical conclusions. A design of the multisphere spectrometer is proposed, that is based on the commercial semiconductor detector DTN-1 possessing very low sensitivity to γ-quanta Monte-Carlo-based algorithms to calculate the sensitivity functions are described. The comparison of neutron spectra, measured by a scintilation spectrometer, a spectrometer with a hydrogen-containing proportional counter, an activation detector and the multisphere spectrometer proves the validity of sensitivity functions

No abstract available

No abstract available

[en] A method for estimation of information quality and resolution of spectrometric systems is presented. The method is based on frequency analysis of two energy spectra, true and measured ones. Mathematical expressions and basic algorithms for computer realization of this method are obtained. 2 refs.; 2 figs

[en] The methods and basic algorithms for informative quality and energy resolution estimations of spectrometric systems into separate energy spectrum sector by means of the frequency analysis method are developed. The results of test and real spectra processing obtained by means of the frequency analysis method are presented. 3 refs.; 2 figs.; 6 tabs

[en] To verify the light response function of scintillators used in neutron spectrometers, experiments were carried out on a monoenergetic neutron beam to measure the light response dependence P (E) for stilbene crystals with dimensions from 10x10 to 70x70 mm. Calculation results are given. The technique of spectrometer calibration according to resonance in some material cross-sections is shown