Measurement of the efficiency of a 6LiD thermal-to-14 MeV neutron converter in the experimental channel of an IVV-2M reactor

The results of measurements of the efficiency of a super(6)LiD thermal-to-fast neutron converter for neutrons from DT and super(6)LiT fusion reactions with energy 14 MeV in the experimental channel of an IVV-2M reactor are presented. The first experimental estimates of the conversion coefficients for the corresponding fusion reactions are obtained: K super(D) 2.11.10 super(-4) and K super(Li) 1.36.10 super(-4). The value found in this work for the total conversion coefficient 3.47.10 super(-4) is approximately 1.7 times greater than the previously measured value and about 20% greater than the maximum computed estimate for a super(6)LiD converter. An experimental apparatus with a super(6)LiD converter in an IVV-2M channel is an accessible, comparatively inexpensive, and unique (for now) source of 14 MeV neutrons that can provide continuous and approximately uniform irradiation of Oe4 20 cm samples by neutrons from DT and super(6)LiT fusion 2.7.10 super(10) sec super(-1).cm super(&#x20 13; 2) for a comparatively long time (500 h).