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Investigations of Neutron Nuclear Interactions
and Properties of the Neutron

Investigations of violations of fundamental symmetries
in neutron-nucleus interactions and related data
• Development and testing of a new experimental method for measuring the ROT effect in fission on polarized neutron beams.
  
  
• Measurement of rare fission modes with Timepix detectors.
  
  
• Precision measurement of yields and angular correlations of -rays and neutrons in the interaction of 14 MeV neutrons with nuclei.
  
  
• Investigation of the variations of multiplicities of fission neutrons and TKE in the reaction ²³⁵U(n_res,f) at the IREN facility. Investigation of the (n, f) process in the reaction ²³⁹Pu(n_res,f).
  
  
• Investigation of fast neutron induced reactions (n,p), (n,) for light nuclei (Cl, N) using an ionization chamber and position-sensitive detectors Timepix3.

Investigation of fundamental properties of the neutron, UCN physics:

• Creating samples of nanodiamond powders with reduced content of metallic impurities and reduced content of elements with large neutron capture cross section to create low-energy nanoparticle reflectors.
  
  
• Measurements of small-angle neutron scattering with the obtained samples to determine their characteristics (size of crystals, agglomerates, etc.).
  
  
• Measurements of the quasi-mirror reflection of VCN from a sample with crystallites of ~ 20 nm in size.
  
  
• Conducting detailed quantum calculations and preparing a draft experimental setup for a non-stationary quantum experiment on the interaction of neutrons with a neutron interference filter oscillating in space.
  
  
• Conducting an experiment on the inelastic heating of UCNs on surface acoustic waves and checking the validity of the model of the effective potential in the case of a substance moving with extreme acceleration of the order of 10 ⁷ g.

Applied and methodological research:

• Development of the data acquisition system for measurements of the time-of-flight spectra by the current method.
  
  
• Modernization of the neutron guide of the 1st channel of the IBR-2 reactor.
  
  
• Investigation of the depth profiles of all elements contained in the surface layers of solid-state samples.
  
  
• Elemental and isotopic analysis of archaeological samples at the IREN facility using the method of neutron resonance spectrometry and the method of neutron activation analysis.
  
  
• Modernization of the REGATA facility at the IBR-2 reactor.
  
  
• Elemental analysis of plant, biological, geological samples, as well as new materials, including nanomaterials, by means of the neutron activation analysis method at the IBR-2 reactor using the REGATA facility.
  
  
• The use of low-background gamma spectrometry to analyze the content of radionuclides in environmental objects.
  
  
• Development of an automated post for carrying out neutron activation analysis at the Institute of Nuclear Physics (Alma-Ata, Kazakhstan).
  
  
• Development of a prototype facility for elemental analysis using TNM and high-resolution gamma-ray detectors.

Development of the IREN facility

• Providing the neutron beam time from IREN for physical experiments.
  
  

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