REG Metals supplies Lanthanum Hexaboride Cathodes (LaB₆ Cathodes) for electron emission systems, electron microscopy, semiconductor inspection equipment, electron beam instruments, vacuum electronics, plasma systems, and high-temperature applications. Lanthanum Hexaboride (LaB₆) is an advanced refractory ceramic material recognized for its low work function, high electron emission efficiency, excellent thermal stability, and long operational lifetime.
LaB₆ Cathodes are widely used as high-performance electron sources in scanning electron microscopes (SEM), transmission electron microscopes (TEM), electron beam lithography systems, X-ray sources, electron beam welding equipment, and vacuum instrumentation. Compared with traditional tungsten cathodes, LaB₆ cathodes provide higher brightness, improved emission stability, and longer service life under proper operating conditions.
REG Metals supplies high-purity LaB₆ cathodes in standard and custom geometries, including rods, tips, and electron emitter assemblies. Custom dimensions, mounting configurations, and material specifications are available with Certificate of Analysis (COA) and complete material traceability.
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