- Optimized for energy-dispersive X-ray spectroscopy
- Beryllium tip and clamps minimize X-ray interference
- High-tilt angles
- Large field of view
- Easy, accurate specimen loading and orientation
Optimized for EDS
The Model 2023 Compact Analytical Tomography Holder for TEM is optimized for energy dispersive X-ray spectroscopy (EDS). The holder tip and clamp are manufactured from beryllium, which has a low atomic number and thereby reduces X-ray production by the holder.
While the holder is optimized for EDS, it is also ideal for any application that requires high specimen tilt angles. The compact design yields minimal holder volume. Combined with the beryllium tip and clamp, the holder provides enhanced X-ray performance.
Tilt angles up to ±65°
The Compact Analytical Tomography Holder enables the imaging of specimens at high tilt angles – up to ±65°. The holder offers a large field of view, up to 1.0 mm at ±65°, in pole-piece gaps of approximately 5 mm or greater.
The holder resolution is 0.34 nm [3.4 Å] in all directions and drift is < 1.5 nm/minute.*
Unique clamp design eliminates shadowing
The holder’s streamlined specimen clamping mechanism eliminates the shadowing associated with most holders at high tilt angles.
Specimens are secured with one beryllium clamp that is spring-loaded to lift it off the specimen surface during loading and unloading,
Positioning the clamp is accomplished without contacting the specimen, which eliminates the possibility of specimen damage or rotation during clamping. This is far superior to typical clamping mechanisms that limit the specimen size or interfere with viewing at high tilt angles.
The tapered, self-centering specimen cup guides the specimen into position. The fully retractable clamp makes it easy to prealign or rotate the specimen manually for a dual-axis tilt series.
The Compact Analytical Tomography Holder’s clamping mechanism accepts specimen grids, standard 3 mm diameter TEM specimens, or focused ion beam (FIB) lamella. The holder accommodates specimen thicknesses up to 250 µm.
Fischione Instruments’s advanced tomography holders are compatible with the TEM’s touch alarm, which stops goniometer movement in the event that a pole touch occurs. Always be aware of the TEM’s pole-piece configuration and follow the microscope manufacturer’s recommendations for operating the goniometer at high tilt angles.
All Fischione Instruments tomography holders come with a dedicated loading station to facilitate specimen handling, tools to assist in specimen clamping, and a Fischione Instruments’ Model 9010 Vacuum Storage Container for storing the holder in a clean, vacuum environment.
*All specifications depend on the microscope model, pole-piece type, and aperture position. For ultimate resolution and drift performance, the TEM must meet the manufacturer’s specifications.