Motorized Dual-Axis Tomography Holder – Model 2045

A holder that features an optimal tilt angle range in narrow gap (~ 5 mm) pole-piece geometries, while maintaining microscope resolution.
  • Motorized rotational control for high- throughput applications
  • Interfaces with the FEI transmission electron microscope (TEM) control system
  • Maximizes tomographic data obtained from the specimen
  • Allows for remote control of rotation and dual-axis functionality
  • Extended field of view even at high-tilt angles
  • FlexiClamp provides an easy, secure means of specimen retention

Motorized Dual Axis Tomo Holder - Model 2045 (222 downloads)

Plasma Cleaning

Fischione recommends that you clean the specimen and specimen holder with its Model 1020 Plasma Cleaner or Model 1070 NanoClean before insertion into the TEM.

During collection of tomographic data, the electron beam will be on the same area of the specimen for an extended time. As a result, organic contamination may build up on the specimen. A plasma cleaning time of 10 seconds to 2 minutes removes the contamination. Longer cleaning times can remove contamination spots caused by previous TEM viewing of non-plasma cleaned specimens.

When not in use, the holders should be stored under vacuum in Fischione Model 9010 Vacuum Storage Containers or the Model 9020 Vacuum Pumping Station.

Precise, in situ planar rotation

The Model 2045 Motorized Dual-Axis Tomography Holder is based on the revolutionary Model 2040 Dual-Axis Tomography Holder. The Model 2045 is designed for room-temperature applications when TEM tomographic imaging or analysis requires software-controlled, automated, in-plane rotation of the specimen. The specimen drive is motorized and interfaces with the microscope’s control system, which allows full software integration of both specimen tilt and rotation.

The Dual-Axis Tomography Holder features an optimal tilt-angle range in narrow gap (~5 mm) pole piece geometries. A fully jeweled mechanism provides ultra-precise, in-plane, specimen rotation while maintaining eucentric height.

Acquiring a dual-axis tilt series enhances the quality of information contained in the tomogram. Motorization is essential when conducting conical tilt tomography, as well as any other high- throughput application.

Automation through the microscope facilitates dual-axis tomography via remote operation, which is especially useful for TEMs that are located in an enclosed environment.

The holder features a FlexiClamp, a spring-type, annular ring that securely clamps the specimen into the specimen cup. It maximizes specimen visibility, even at high-tilt angles.

Touch protection

Fischione’s Advanced Tomography Holders are compatible with the TEM’s touch-alarm that 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 recommendation for operating the goniometer at high-tilt angles.

Ordering information

All Fischione tomography holders come with a dedicated loading station to facilitate specimen handling, tools to assist in specimen clamping, and a Fischione 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.

Specifications

Holder type Room-temperature, single tilt, in-plane rotation
For most transmission electron microscopes (TEMs)
Specimen size 3 mm diameter
Wide range of thicknesses up to 100 μm
Resolution 0.34 nm (in all directions)
Drift < 1.5 nm/min
Maximum tilt range Up to ± 70°
Field of view Up to 950 μm at 70°
Warranty One year

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.