Neutron imaging is one of the key technologies for non-destructive transmission testing. Recent progress in the development of intensive neutron sources allows us to perform energy-resolved neutron imaging with high spatial resolution. Substantial efforts have been devoted to developing a high spatial and temporal resolution neutron imager. We have been developing a neutron imager aiming at conducting high spatial and temporal resolution imaging based on a delay-line neutron detector, called the current-biased kinetic-inductance detector, with a conversion layer 10B. The detector allowed us to obtain a neutron transmission image with four signal readout lines. Herein, we expanded the sensor active area, and improved the spatial resolution of the detector. We examined the capability of high spatial resolution neutron imaging over the sensor active area of 15 × 15 mm2 for various samples, including biological and metal ones. We also demonstrated an energy-resolved neutron image in which stainless-steel specimens were discriminating of other specimens with the aid of the Bragg edge transmission.
@article{arxiv.1911.02374,
title = {Energy-resolved neutron imaging with high spatial resolution using a superconducting delay-line kinetic inductance detector},
author = {Yuki Iizawa and Hiroaki Shishido and Kazuma Nishimura and The Dang Vu and Kenji M. Kojima and Tomio Koyama and Kenichi Oikawa and Masahide Harada and Shigeyuki Miyajima and Mutsuo Hidaka and Takayuki Oku and Kazuhiko Soyama and Kazuya Aizawa and Soh Y. Suzuki and Takekazu Ishida},
journal= {arXiv preprint arXiv:1911.02374},
year = {2019}
}