$ 1,315.58
Details
High performance, resistively heated, thermionic electron source for use in SEM, TEM, electronlithography systems, and x-ray sources. Features extended life with thousands of hours in clean vacuum. Guaranteed life measured in surface loss and guaranteed against mounting structure failure. Thermally, chemically, and electrically stable. Precision machined carbon mounting. Highover-temperature tolerance. High brightness/low energy spread with oriented single crystal made from the best quality/high purity material. Mounted on the end of a single-piece, stress-free, carbon heater rod, held in place by a carbon ferrule. A high degree of axial symmetry provides great mechanical stability. The rod has a 100 um slot along the axis, which allows the heating current to go up one side and down the other. Style 90-15 (90 deg included angle with a 15*m flat) is recommended for Leica/Cambridge
