Experimental (n, n' gamma) cross sections for isotopes 182, 184 and 186W
This dataset presents the most comprehensive collection ever measured of (n, n' gamma) cross-sections for the Tungsten isotopes 182, 184, and 186. With a scarcity of available data for the 182,184,186W(n, n') reactions, this dataset fills a crucial gap in nuclear reaction studies, especially around 14 MeV neutrons.
The study, conducted at the GELINA facility from EC-JRC Geel in Belgium, used the GRAPhEME setup, incorporating a fission chamber to measure the incoming neutron flux and HPGe detectors for prompt gamma ray detection.
The analysis method employed to produce the differential cross-section involves computing differential cross-sections as key angles with respect to the beam axis for each γ transition of interest. This computation relies on the intensity of the gamma ray transition at a designated time of flight, corresponding to a particular neutron energy, and the neutron flux measured by the fission chamber. The angle integrated (n, n' gamma) cross-section published in this dataset are obtained by linear combinations of the differential ones, based on Legendre polynomial decomposition of the angular emission distribution and the Gauss integration method.
The data offers valuable insights into the mechanisms governing inelastic neutron scattering reactions, including direct, pre-equilibrium, and compound nucleus processes.
It serves as a valuable resource for reactor physics, aiding in the development and validation of theoretical models for neutron induced reactions.