Abstract
A neutron image plate (NIP) was developed recently as an area detector for the neutron experiment. It will be possible to obtain strains along the line in the material where neutron beams penetrate from a Debye-Scherrer ring on the NIP. Since the diffraction ring contains continuous and different oriented strains, the depth profile can be determined more correctly as well as quickly than the ordinary method. In this study, we attempted to find out the possibility of the NIP for the stress measurement. As the first step, an observation of neutron diffraction rings was performed on the 211 diffraction of a steel. The influence of the thickness of the material as well as an incident angle on the diffraction ring was investigated. A simple tensile test was also performed and a diffraction image was analyzed to investigate the relation between the deformation of the diffraction ring and the tensile stress.
