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Nuclear Physics with Neutrons - Fundamental
and Applied Investigations

Scientific Programme:

• Experiments at IBR-30:
  
• Precision measurements of the total neutron cross section using gaseous argon as a first stage of investigations of the (n,e)-interaction.
• Continuation of experiments to measure the left-right asymmetry and the effect of spatial parity violation in the resonance neutron-induced fission of ²³⁹Pu nuclei with the POLIANA facility. Completion of analysis of the obtained data.
• Experimental trials of the efficiency of two new hydrogen containing materials as proton filters-polarizers. Beginning of work on the designing of nuclear targets polarized by the method of dynamic pumping for experiments of verification of time invariance.
• Experiments with a KATRIN facility prototype on the neutron beam, measurements of the beam polarization; start of designing of an optically polarized gaseous nuclear target with a pressure of 10 atm and ^129,151Xe isotopes.
• Completion of measurements of the angular distribution of protons from the reaction ³⁵Cl(n,p) ³⁵S in the neutron resonance with E_n=398 eV and of the anisotropy "forward-backward" of protons from the reaction ¹⁴N(n,p) ¹⁴C at E_n 1 keV with the aid of PARKS installation.
• Final series of measurements of absolute values of the anisotropy of fission fragments from the reaction ²³⁵U(n,f) and analysis of the whole complex of data obtained with aligned targets.
• AT the facilities ROMASHKA and PARUS: investigations of the reactions of radiative capture and fission in the nuclei ²³⁵U and ²³³U in the neutron energy range 7-300 eV, measurements of gamma-quanta multiplicity spectra to refine the value of =/ in separate resonances and in energy groups and measure total cross sections, radiative capture cross sections and resonance blocking factors for ²³²Th within an accuracy of 3-7 100 keV.
• Continue the acquisition of data planing to obtain on CASCADE facility for two subsequent gamma transitions in two, little studied, types of nuclei to discover the main properties of nuclear matter in the region of the phase transition superfluid state - normal Fermi-liquid.
• Precision measurements of the gamma radiation spectra of the neutron-induced fission fragments ²³⁹Pu employing correlation analysis with a multidetector (HPGe-BGO) gamma-spectrometer.
• Use of a new technique developed at FLNP JINR to conduct measurements of partial cross-sections of neutron radiative capture in the range 10-100 keV for two nuclei and to determine their radiative strength functions with the multipolarity E1 and M1.
  
  
• Experiments at IBR-2:
  
• First measurements of neutron spin precession in the transmission of polarized neutrons through a polarized target at the KOLKHIDA facility.
• Furher measurements of delay neutron yields from the thermal neutron-induced fission of nuclei of minor actinides with a modernized DRENIZ facility.
• Measurements of the reaction ²¹Ne(n, ) ¹¹) using a new ionization chamber.
• Project REGATA - measurements of heavy metal pollution in some regions of Russia, including Moscow region, Ural and Baikal regions, Kola Peninsula and also in Bulgaria, Poland, Moldova, Romania, China, and Egypt. Experimental substantiation of the possibility of developing new biotechnologies.
  
  
• Experiments at non-JINR neutron sources:
  
• Further investigations in the physics of UCN at the reactor of ILL, Grenoble.
• Further experiments in the optics of cold and ultracold neutrons at the reactor of ILL, Grenoble.
• Experiments to measure the time of neutron interaction with quantum objects in matter.
• Modernization of the UCN source at the BIGR reactor according to modeling results and results of the first experiments.
• Experiments to study nuclear data for astrophysics in Karlsruhe, Beijing, and Oak Ridge.

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