A possible approach to 14MeV neutron moderation: A preliminary study case

D Flammini; R Pilotti; A Pietropaolo

doi:10.1016/j.apradiso.2017.04.015

A possible approach to 14MeV neutron moderation: A preliminary study case

Appl Radiat Isot. 2017 Jul:125:129-133. doi: 10.1016/j.apradiso.2017.04.015. Epub 2017 Apr 12.

Authors

D Flammini¹, R Pilotti², A Pietropaolo³

Affiliations

¹ ENEA Department of Fusion and Technologies for Nuclear Safety and Security, via E, Fermi 45, 00044 Frascati Roma, Italy.
² Università degli Studi di Roma Tor Vergata Department of Industrial Engineering, via del Politecnico 1, 00127 Roma, Italy.
³ ENEA Department of Fusion and Technologies for Nuclear Safety and Security, via E, Fermi 45, 00044 Frascati Roma, Italy. Electronic address: antonino.pietropaolo@enea.it.

PMID: 28431337
DOI: 10.1016/j.apradiso.2017.04.015

Abstract

Deuterium-Tritium (D-T) interactions produce almost monochromatic neutrons with about 14MeV energy. These neutrons are used in benchmark experiments as well as for neutron cross sections assessment in fusion reactors technology. The possibility to moderate 14MeV neutrons for purposes beyond fusion is worth to be studied in relation to projects of intense D-T sources. In this preliminary study, carried out using the MCNP Monte Carlo code, the moderation of 14MeV neutrons is approached foreseeing the use of combination of metallic materials as pre-moderator and reflectors coupled to standard water moderators.

Keywords: 14MeV neutrons; Fusion neutron source; Moderators.