2021/03/16 by J.R. Granada, Granada, José Rolando, José Ignacio Márquez Damián +11
Earth and Planetary Sciences · Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High-pressure geophysics and materials #Instrumentation and Detectors (physics.ins-det) #Nuclear Physics and Applications
paper · pdf · doi:10.48550/arxiv.2103.09145
openalex publication_date 2021/03/16 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
The newest neutron scattering applications are highly intensity-limited\ntechniques that demand reducing the neutron losses between source and\ndetectors. In addition, the nuclear industry demands more accurate data and\nprocedures for the design and optimization of advanced fission reactors,\nespecially for the treatment of fuel and moderator materials. To meet these\ndemands, it is necessary to improve the existing calculation tools, through the\ngeneration of better models that describe the interaction of neutrons with the\nsystems of interest. The Neutron Physics Department at Centro Atomico Bariloche\n(CNEA, Argentina) has been developing over the time new models for the\ninteraction of slow neutrons with materials, to produce scattering kernels and\ncross section data in the thermal and cold neutron energy region. Besides the\nstudies carried out on neutron moderators, we have recently begun looking at\nmaterials that could serve as efficient neutron reflectors over those energy\nranges. In this work we present the results of transmission and scattering\nexperiments on diamond nanopowder and magnesium hydride, carried out\nsimultaneously at the VESUVIO spectrometer (ISIS, UK), and compare them with\nnewly generated cross-section libraries.\n