The Passage of Fast Neutrons through the Crystal Structure of Textured CVD Diamond
The passage of fast neutrons through the crystal structure of a textured diamond obtained by chemical vapor deposition (CVD) was studied. Neutrons with energy of 2.45 MeV from the DD reaction and with average energy of about 2 MeV from the <sup>252</sup>Cf isotope were used as sources. Neutrons were detected by two independent methods: using proportional counters filled with <sup>3</sup>He and a paraterphenyl scintillation detector. The measurement showed the dependence of the neutron flux incident on the detector on the orientation of the target. In the case of isotropic samples containing diamond and carbon, no such effects were observed. A possible explanation of the effect is the channeling of deuterium and neutron ions in the channels of a textured CVD diamond.