Specular reflection of neutrons on material surfaces has been demonstrated in the energy range of 0.09-0.7 eV. The results suggest that the applicable energy range of reflective neutron optics can be extended to the near-epithermal region by using existing techniques.
@article{arxiv.2403.18313,
title = {Demonstration of Near-Epithermal Neutron Reflective Optics},
author = {Takuhiro Fujiie and Ryota Abe and Masahiro Hino and Mayu Hishida and Takuya Hosobata and Masaaki Kitaguchi and Rintaro Nakabe and Kenichi Oikawa and Takuya Okudaira and Joseph D. Parker and Kenji Sakai and Hirohiko M. Shimizu and Yusuke Tsuchikawa and Yutaka Yamagata},
journal= {arXiv preprint arXiv:2403.18313},
year = {2024}
}