Neutron imaging is one of the key technologies for non-destructive<br />
transmission testing. Recent progress in the development of intensive neutron sources<br />
allows us to perform energy-resolved neutron imaging with high spatial resolution.<br />
Substantial efforts have been devoted to developing a high spatial and temporal<br />
resolution neutron imager. We have been developing a neutron imager aiming at<br />
conducting high spatial and temporal resolution imaging based on a delay-line neutron<br />
detector, called the current-biased kinetic-inductance detector, with a conversion layer<br />
10B. The detector allowed us to obtain a neutron transmission image with four signal<br />
readout lines. Herein, we expanded the sensor active area, and improved the spatial<br />
resolution of the detector. We examined the capability of high spatial resolution<br />
neutron imaging over the sensor active area of 15 × 15 mm2<br />
for various samples,including biological and metal ones. We also demonstrated an energy-resolved neutron<br />
image in which stainless-steel specimens were discriminating of other specimens with<br />
the aid of the Bragg edge transmission.