Effective parameters and neutrography dispersion in the RP-10 reactor: Preliminary study

This paper presents a breakthrough in the study of the most important effective parameters, alternative to the standards, of the neutrography acquisition system, considering an irradiation point source and an effective register distance, as well as the dispersive effect that some kind of materials can produce when free neutrons impact them. It was observed that they do not only depend on the shape and distance from the object to the photographic screen or the neutron beam divergence, but also on the constitution of these materials. Hydrogenated materials as well as micro and nano structured solids are capable to produce significant neutron scattering. The study is developed through the analysis of images obtained by neutrography using the neutron beam of the RP-10 nuclear reactor. False color applications to the intensity of the neutron flux which gives a color contrast and simulation of 3D images intensities have helped to interpret the obtained information. (authors).