Ted Pella Inc. 61300 Electron Microscope Aperture

The Ted Pella Inc. 61300 Electron Microscope Aperture is a 300 µm precision beam-shaping disk designed for direct replacement in TEM and SEM aperture holders. Made from Platinum-Iridium (95:5), it features a 3.04 mm outside diameter and a 0.25 mm thick disc, with an aperture hole tolerance of ±5 µm within the 71–300 µm range to ensure consistent beam diameter control and stable current. It provides electron beam limiting, beam alignment, beam current control, and resolution enhancement to improve image quality for high-precision analysis. The aperture is compatible with Transmission Electron Microscopes and Scanning Electron Microscopes using 3.04 mm aperture holders and is installed as a Direct Replacement Aperture Disc. Common applications include materials science, semiconductor inspection, nanotechnology, metallurgy, and life science research laboratories, where accurate beam alignment and stable imaging are essential. It is commonly used by maintenance engineers, microscopy laboratories, research institutions, and instrument service technicians for routine replacement, preventive maintenance, instrument calibration, and restoration of optimal electron beam performance. Manufacturer: Ted Pella, Inc.; MPN: 61300.