Neutron (Neumir™) coatings
In 1987, capitalizing on its previous success in commercializing multilayer X-ray optics, Rigaku began to develop high reflectivity neutron supermirrors for high critical angle applications. In 1995, after developing significant optical fabrication experience, Rigaku made the commitment to provide high throughput neutron guide system coatings. Rigaku offers its products and services with a strong commitment to quality and customer satisfaction. Rigaku's leadership in the development of high efficiency coatings enables it to offer a range of optical solutions including neutron coatings for guide systems, polarizers, monochromators, and crystals.
| Product type | Useful range | Reflectivity @ cmax |
Average reflectivity |
| Ni coating | 0 - 0.1 o/Å | 99% | |
| Ni58 equiv. SM | 0 - 0.12°/Å | 98% | |
| 2ThetacNi SM | 0 - 0.2°/Å | 92% | |
| 3ThetacNi SM#1 | 0 - 0.3°/Å | 90% | 95% |
| 3ThetacNi SM#2 | 0 - 0.3°/Å | 80% | 90% |
| SM Band 20% | 0.27-0.33°/Å | 85% | 85% |
| SM Band 10% | 0.285-0.315 | 90% | 90% |
| custom SM | As specified | ||
NiC-Ti supermirrors (high reflectivity / high critical angle optics)
| Product type | Angular range (d Theta) |
Reflectivity @ cmax |
Transmission | Polarization efficiency |
| 2ThetacNi SM | 0 - 0.2°/Å | 92% | 70% | 97% |
| 3ThetacNi SM | 0 - 0.3°/Å | 85% | 70% | 95% |
| SM Band 20% | 0.27-0.33 | 85% | 92% | |
| SM Band 10% | 0.285-0.315 | 90% | 92% | |
| custom SM | As specified | |||
Fe-Si supermirrors (high
transmission, polarization efficiency)