Improving the cross sections of reactions of fast neutrons with zirconium 90 and zirconium 91 under formation of nuclides in an isomeric state

The authors attempt to find the precise values of the cross sections of the reactions of fast neutrons at zirconium isotopes under formation of nuclides in isomeric states. In order to improve the cross section values, the authors studied the (n,p), (n,2n), and (n,alpha) reactions at the nuclide Zr 90 and the (n,p) reaction at the nuclide Zr 91. Zirconium samples of the natural isotope composition were used. The reaction cross sections obtained with several series of measurements are listed in a table