[color=rgb(0, 0, 0)]A non-radioactive replacement for thorium fluoride, ThF4, is now available. CIROM-IRX™ can be used for applications ranging from low-loss laser mirrors to filter and AR coatings. The material provides a refractive index of 1.4 near 10 μm wavelength and is compatible with other layer components typically used in IR multilayer coating designs. Coatings of CIROM-IRX™ show good adhesion and low stress for layer thicknesses at least twice the thickness of pure CeF3 films.

[color=rgb(0, 0, 0)]CIROM-IRX™ is a modified form of cerous fluoride. The material can be handled using standard safety precautions. There is no radioactivity associated with CIROM-IRX™

[color=rgb(0, 0, 0)] CIROM-IRX™s manufactured as fully melted ingots at a very high temperature in a controlled atmosphere. The ingot is crushed and sized to lumps, granules or small grains, depending on customer application. Any required particle size range can be produced on short notice.