Luxel's filters have been utilized in the majority of soft X-ray and EUV space astronomy missions flown since the early 1970's. Filter foils are most often a few hundred angstroms reaching occasionally up to several microns in thickness. Bandpass characteristics and mechanical properties are the two most important factors in determining filter materials. Aluminum is the most commonly used material because it has a wide X-ray bandpass, eliminates visible light, and has excellent mechanical properties.
All filters are extremely fragile, and normally the foils are provided with a fine mesh support.
Other supports are available, most commonly, thin film polyimide . Standard Filter Performance Physical characteristics of common composition, thickness, and maximum visible transmittance is available for our standard product line. Available A compilation of our proven special filters, designed, fabricated, and tested to your specifications. We will also supply custom filters and windows mounted on your frames. We pride ourselves on the custom design, development and fabrication of custom filters for your research applications.