Abstract
In this paper, the possibility of performing a comprehensive neutronic characterization of new materials for neutron moderation at the ISIS Neutron and Muon Source using two of its instruments, VESUVIO and TOSCA, will be discussed.
Highlights
The moderator is the most important component of a neutron source
Its role is to slow down neutrons leaked from a target or a reactor to very low energies needed for material science studies
A number of experiments have been performed around the world to measure triphenylmethane cross-sections and vibrational density of states in order to address its use as an efficient moderator material
Summary
The moderator is the most important component of a neutron source. Its role is to slow down neutrons leaked from a target (in the case of accelerator based neutron source) or a reactor to very low energies needed for material science studies. Speaking, the very first neutron sources specialized for neutron scattering experiments used thermal neutrons These days there is increasing interest in the production of cold (and ultracold) neutrons at the neutron sources because of their significant advantages for materials research. Liquid/solid deuterium (D2), liquid hydrogen (H2) and hydrocarbons (for example, liquid/solid methane) are the standard choices of moderator materials at the reactors and accelerator based cold neutron sources. All those materials have very good neutron moderation characteristics but serious disadvantages as well: limited neutron energy range (and relatively low proton density) in the case of liquid hydrogen or limited use of hydrocarbon materials at the high power neutron sources because they are prone to serious radiation damage. In this paper, ongoing activities at the ISIS Neutron and Muon Source [1] related to the search for the new neutron-moderating materials are presented
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
