Observation of resonance enhanced neutron standing waves using charged particle emission after neutron capture

摘要

The effect of resonance enhancement of neutron standing waves in a structure glass/Cu (1000 Angstrom)/Ti (2000 Angstrom)/Li(sup 6)F (200 Angstrom) is investigated. For particular neutron wavelengths there is observed a decrease in the intensity of the reflected neutrons and the corresponding increase in the emission of alpha-particles and tritons induced by neutron capture in Li-6 nuclei. It is the evidence of an increase in the neutron density of the Li(sup 6)F layer for such wavelengths and is connected with the interference of the incident neutron wave and the neutron wave reflected from the Cu layer. The experimental and calculated data point to the existence of a resonance enhanced neutron wave field in the Ti and Li(sup 6)F layers. 13 refs., 1 fig.