The neutron cross-section functions for the reactions 187Re(n, $\alpha$ )184Ta, 187Re(n,2n)186Re and 185Re(n,2n)184Re in the energy range 13.08-19.5 MeV

Abstract

Re reactions were performed in the energy range 13.08-19.5 MeV. We applied the neutron activation technique using several wide-energy neutron beams (NAXSUN), recently developed at the JRC-IRMM. This method involves measuring the activity of the radionuclides produced in a target by the in energy overlapping neutron beams and a subsequent unfolding procedure. The present results are the first experimental data on these cross-sections for incident neutron energies between 15 and 19.5 MeV and may contribute to improving evaluations and nuclear models.

The cross section functions for neutron induced reactions with Rhenium in the energy range 13.0–19.5 MeV

“…We used 3 H(d,n) 4 He as the neutron producing reaction. The disks were irradiated at one neutron energy and in an interval from 0 • to 80 • relative to the beam direction (41 different positions in steps of 2 • ).…”

“…In this way the samples were exposed to a total neutron spectrum over a broad-energy region. In Table 1 we present information about the deuterium beam and neutron energy as well as the irradiation time [4]. The neutron spectra were simulated employing the TARGET code [5].…”

“…The NAXSUN method is based on the irradiation of a certain number of metal disks containing the studied isotopes in a series of well known and energy overlapping neutron fields [4]. The induced gamma-activity ( A k ) can be measured by means of high-resolution gammaray spectroscopy systems.…”

“…A detailed description of the NAXSUN technique can be found in Refs. [1][2][3][4]. Using the NAXSUN technique measurements of the cross section for the neutron induced reactions on the Rhenium isotopes 185 Re and 187 Re were performed.…”

“…Using the NAXSUN technique measurements of the cross section for the neutron induced reactions on the Rhenium isotopes 185 Re and 187 Re were performed. In this work, we present results for the 187 Re(n, α) 184 Ta, 187 Re(n, 2n) 186 Re, 185 Re(n, 2n) 184 Re, 187 Re(n, p) 187 W and 185 Re(n, 3n) 183 Re reactions in the energy range 13.0-19.5 MeV [4].…”