Spatial resolution enhancement of neutron radiogram by cooperating with X-ray radiography

Using pulsed neutron imaging, the distributions of absolute values of nuclide densities and temperatures of the sample can be estimated. However, the images obtained by the pulsed neutron imaging have a low spatial resolution because of the performance limitations of the detector. On the other hand, X-ray radiograms have higher spatial resolution compared with the neutron images. To obtain higher-resolution neutron images, we developed the resolution enhancement method for neutron images by cooperating with the X-ray radiography. The resolution enhancement method consists of the image alignment and the mapping methods. As a first step, we tried mapping neutron transmission image into the X-ray image.