EPJ Web of Conferences (Jan 2020)

Application of fluorine-based threshold activation detector for neutron flux calculation from D-T neutron generator

  • Sibczyński Paweł,
  • Brosławski Andrzej,
  • Burakowski Szymon,
  • Chłopik Arkadiusz,
  • Dryll Marek,
  • Dziedzic Andrzej,
  • Gierlik Michał,
  • Grodzicki Krystian,
  • Kaźmierczak Łukasz,
  • Krakowski Tomasz,
  • Niechcielski Kamil,
  • Rzadkiewicz Jacek,
  • Sliphukin Ivan,
  • Trela Krystian,
  • Urban Arkadiusz,
  • Zezuliński Kacper,
  • Iovene Alessandro,
  • Tintori Carlo

DOI
https://doi.org/10.1051/epjconf/202022502004
Journal volume & issue
Vol. 225
p. 02004

Abstract

Read online

In this paper we propose a method of fast neutron flux estimation from a pulsed D-T neutron generator with application of single CaF2 scintillation crystal. The analysis method relies on 19F(n, α)16N threshold activation reaction having neutron energy threshold at 1.6 MeV. As a result, the 16N undergo β− decay with half-life of 7.1 s, emitting β particles with endpoint up to 10.4 MeV in the scintillator medium. Integration of the β distribution curve, preceded by calculation of (n, α) rate on F with Monte Carlo N-Particle Transport Code v6 (MCNP6) for fixed geometry, allows to estimate the neutron flux in 4π per second within few minutes.

Keywords