Efficiency measurement of 6LiD converter of thermal to fast neutrons of (DT), (6LiD) fusion with 14 MeV energy in IVV-2M reactor experimental channel

The measuring efficiency 6LiD converter results of thermal to fast neutrons of (DT), (6LiT) fusion reactions with energy E∼14 MeV in IVV-2M reactor experimental channel (SB RDIPE, Zarechny) are presented. e first time there has been obtained an experimental estimation of conversion factors KD≅2.11×10−4, KLi≅1.36×10−4, at the expense of the above fusion reactions, respectively. The full value of conversion factor K≅3.47×10−4 found in this experiment is ∼1.7 times greater than the measured earlier value of the same quantity and approximately 20% higher than the maximum theoretical estimate of K for the 6LiD converter. shown that the experimental device with 6LiD converter in the IVV-2M reactor channel is a practicable, comparatively cheap and, for today, unique source of ∼14 MeV neutrons, capable of providing continuous and almost uniform irradiation of samples ∼∅ 4 cm×20 cm in size with a neutron flux of (DT), (6LiT) fusion ϕ≅2.7×1014 n m−2 s−1 during a comparatively long time period (∼500 h). The possible fields of such source application are the following investigation of irradiation effects on materials for fusion reactors, generation of neutron-deficient isotopes with positron radioactivity for diagnostic applications and activation analysis.