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Article
Systematics and possible nonstatistical behaviour of (n,2n) cross sections
A systematical analysis of experimental (n, 2n) cross sections has been carried out by many authors for long time. However, a substantiated theoretical approach to explain the observed systematical regularity of ...
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Article
Cross section measurement for the 14N(n,α0,1)11B reactions in the 4.5–11.5 MeV neutron energy region
With more accurate measurement method for gas samples, cross sections of the 14N(n,α0,1)11B reactions were measured at 24 energy points in the 4.5–11.5 MeV neutron energy region based on the 4.5 MV Van de Graaff ...
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Article
Cross section of the 232Th(n, f) reaction in the MeV neutron energy region
Accurate cross section of the 232Th(n, f) reaction are demanded in the design of advanced nuclear systems and in the development of fission theory. However, the existing measurement data are relatively sparse com...
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Article
Search and Measurement of P-Odd Asymmetry in the Emission of Secondary Particles Produced in Reactions of Polarized Thermal and Cold Neutrons with Light Nuclei
Investigation of spatial parity in reactions of polarized neutrons with light nuclei is an important topic in the framework of exploring the fundamental problem of understanding the manifestation of the weak i...
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Article
Cross sections of the 10B(n,\(\alpha\))7Li two-body and 10B(n, t2\(\alpha\)) three-body reactions at 4.0, 4.5, and 5.0 MeV
The cross sections of the 10B(n,\(\alpha\)α)7Li two-body and 10B(n, t2\(\alpha\)α) three-body reactions have been measured at \( E_{n} =4.0\)En=4.0, 4.5 and 5.0 MeV using a GIC (twin gridded ionization chamber) and an ...
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Article
Grazing-Incidence Neutron Spectrometer Detecting Neutrons and Charged Particles
An ionization chamber is installed to the REMUR neutron spectrometer, situated at channel no. 8 of the IBR-2. A layered structure containing a layer of the isotope under study with a thickness of several nanom...
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Article
Left–right asymmetry in integral spectra of γ-quanta in the interaction of nuclei with polarized thermal neutrons
The paper presents results of preliminarymeasurements of the left–right asymmetry in integral spectra of γ-quanta emitted in the interaction of polarized thermal neutrons with nuclei. These results indicate th...
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Article
Isotope-Identifying neutron reflectometry
The possibilities of an isotope-indentifying study of layered structures in different regimes of a neutron wave field are considered. The detection of specularly reflected neutrons and secondary radiation (cau...
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Article
Differential and angle-integrated cross sections for the 40Ca(n, α)37Ar reaction from 4.0 to 6.5 MeV
Differential cross sections for the 40 Ca(n, \( \alpha_{{0}}^{}\) ) ,
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Article
Systematical analysis of (n, α) reaction cross sections for 6–20 MeV neutrons
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Article
Search for P-ODD asymmetry in the radiative cross-section of the interaction of neutrons with lead nuclei
The P-odd effect in the radiation cross section of capture of longitudinally polarized neutrons in a sample of natural lead is measured. The experiment was performed at PF1B facility at the Institut Max von Laue-...
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Article
A method to measure neutron polarization using P-even asymmetry of γ-quantum emission in the neutron-nuclear interaction
A new method to measure polarization of cold/thermal neutrons using P-even asymmetry in nuclear reactions induced by polarized neutrons is proposed. A scheme profiting from a large correlation of the neutron spin...
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Article
Parity-violating asymmetry in the reactions 6Li \((n,\alpha)\) 3H and 10B \((n,\alpha)^{7}\) Li* \(\rightarrow\) 7Li \(+\) \(\gamma\)
We present two experiments measuring the parity-violating asymmetry (P-odd) of tritons emission in the reaction 6Li(n,α)3H and γ-quanta emission in the reaction 10B(n,α)7Li* → 7Li + γ with polarized cold neutrons...
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Article
New results on P -odd asymmetry of \( \gamma\) -quanta emission in 10B(n, \( \alpha\) )7Li* \( \rightarrow\) \( \gamma\) + 7Li(g.s.) nuclear reaction
A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in \( \gamma\) ...
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Article
New version of the integrated method for measuring small effects in experiments on beams extracted from a nuclear reactor at the effect sign switching frequency above the fundamental frequencies of the reactor power fluctuation spectrum
The principles of construction and the results of testing of a system for measuring P-odd asymmetries in nuclear reactions with polarized cold neutrons by the integrated method of recording events at the neutron ...
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Article
Cross-section measurement for the 67Zn(n, \( \alpha\) )64Ni reaction at 6.0 MeV
Up to now, no experimental cross-section data exist for the 67Zn (n, \( \alpha\) ) 64Ni reaction in the MeV neutron energ...
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Article
Yurii Pavlovich Popov February 13, 1928–February 24, 2005 (On the 80th anniversary of his birth)
The scientific biography of the distinguished physicist experimentalist and prominent expert in the field of neutron nuclear physics Yurii Pavlovich Popov (13.02.1928–24.02.2005) is presented, including his wo...
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Article
Discovery of a P-odd effect in triton emission from the reaction 6Li(n, α)3H
The results of measuring the P-odd asymmetry (S n · P t) for triton emission from the reaction 6Li(n, α)3H are presented. Here, S n is the neutron spin and P t is the triton momentum. Three series of measurements...
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Article
Cross sections of the14N(n, p)14C reaction at 24.5, 53.5 and 144 keV
We have measured the14N(n, p)14C reaction cross section at 24.5, 53.5 and 144 keV to be 2.04±0.16 mbarns, 2.08±0.23 mbarns and 2.07±0.27 mbarns, respectively. The measured values indicate that this reaction could...
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Article
The cross section of the7Be(n,p)7Li reaction at 24.5 keV neutron energy
The 24.5 keV neutrons induced reaction with the7Be radioactive nucleus was studied. The value of σnp=(18±4)b was obtained for the7Be(n, p)7Li reaction cross section.
