Electrofusion Products BerylliumBeryllium AcousticsAcoustic Domes and RibbonsTruextent SSX Diaphragm Beryllium X-ray Window AssembliesX-ray IF-1 X-ray IS-50M X-ray PF-60 X-ray PS-200 Vacuum - UHV AssembliesBeryllium Beam PipesCF Flange AssembliesCatalog CF Flange AssembliesCustom Engineered CF Flange AssembliesUHV Research Chambers Materion BrandsIF-1®IS-50M®PF-60®PS-200®SSX™Truextent® ServicesTechnologiesMarketsResource CenterAboutContact Us Be Window Specification Comparison Additional Resources Electrofusion Home Resource Center Product Data & Related Literature Beryllium Beryllium X-ray Material Brochures & Data Sheets / Spec. Sheets Be Window Specification Compar... Beryllium (Be) Window Specification Comparison