Thermoluminescence of Reactor-Irradiated Aluminium Oxide

Neutron Spectrometry With Scintillating Bolometers of LiF and Sapphire

“…1) 19 F whereas the structure between 0.2 and 0.5 MeV comes from elastic scattering on 19 F plus an important contribution from (n,n') to the first (110 keV) and second (197 keV) excited levels of 19 F, as well as a small fraction from resonant elastic scattering on 7 Li at 0.24 MeV. The cross section of 6 Li ( Fig.…”

“…Total cross section for neutrons on LiF (continuous line) and 6 Li (long dashed line). Short dashed line shows (n,α) cross section on LiF, where capture by 6 Li dominates below 3 MeV and capture by 19 F is dominant above 3 MeV.…”

“…The unfolding of one spectrum measured with 6 LiF was tested later [18]. Sapphire has not traditionally been used for neutron spectrometry though it can be used as dosimeter for high fluxes of neutrons from nuclear reactors [19]. Elastic scattering with oxygen or aluminum is the only relevant process for fast neutrons below 1 MeV, and accounts for up to 80% of all interactions in sapphire at 6 MeV [20].…”