This article describes a series of studies on the effect of the rotation of the fissile 236U nucleus in the^(235)U(n,f)process induced by monochromatic polarized neutrons with energies of 62 meV and 270 meV.The studie...This article describes a series of studies on the effect of the rotation of the fissile 236U nucleus in the^(235)U(n,f)process induced by monochromatic polarized neutrons with energies of 62 meV and 270 meV.The studied effect is expressed as a shift in the anisotropic angular distribution ofγ-rays emitted by excited fission fragments by a small angle relative to the deformation axis of the fissile nucleus when the neutron beam polarization direction is reversed.All measurements were performed at the Heinz Mayer-Leibniz research neutron source(FRM Ⅱ reactor)of the Munich Technical University in Garching on the polarized neutron beam of the POLI instrument.To generalize all results obtained on ROT effects for fissionγ-rays,the results of earlier studies by the ITEP group for cold neutrons are re-processed,and the result obtained by the PNPI group for thermal neutrons is also presented.展开更多
基金Supported by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan(BR21881930)by the Russian Ministry for Science and Education,German Ministry for Education and Research BMBF through the project 05K13PA3.
文摘This article describes a series of studies on the effect of the rotation of the fissile 236U nucleus in the^(235)U(n,f)process induced by monochromatic polarized neutrons with energies of 62 meV and 270 meV.The studied effect is expressed as a shift in the anisotropic angular distribution ofγ-rays emitted by excited fission fragments by a small angle relative to the deformation axis of the fissile nucleus when the neutron beam polarization direction is reversed.All measurements were performed at the Heinz Mayer-Leibniz research neutron source(FRM Ⅱ reactor)of the Munich Technical University in Garching on the polarized neutron beam of the POLI instrument.To generalize all results obtained on ROT effects for fissionγ-rays,the results of earlier studies by the ITEP group for cold neutrons are re-processed,and the result obtained by the PNPI group for thermal neutrons is also presented.
