Neutron optics

Neumir™ coatings for guide systems, polarizers, monochromators, and crystals

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.

Specifications:

Product type	Useful range	Reflectivity @ _cmax	Average reflectivity
Ni coating	0 - 0.1°/Å	99%
Ni⁵⁸ equiv. SM	0 - 0.12°/Å	98%
2Theta_cNi SM	0 - 0.2°/Å	92%
3Theta_cNi SM#1	0 - 0.3°/Å	90%	95%
3Theta_cNi 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
2Theta_cNi SM	0 - 0.2°/Å	92%	70%	97%
3Theta_cNi 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)

Neumir optics

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