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  • Fully-jeweled mechanism for
    ultra-precise planar specimen rotation
  • Optimized tilt in pole piece gaps as small as 5mm
  • Ideal for room temperature
    electron tomography
  • Maximizes tomographic data obtained from the specimen
  • Extended field of view
  • FlexiClamp provides an easy, secure means of specimen retention

Precise, in situ planar rotation
The Model 2040 Dual-Axis Tomography Holder is for TEM imaging or analysis that requires in situ specimen rotation. Acquiring a dual-axis tilt series enhances the information contained in the tomogram.

The Dual-Axis Tomography Holder features an optimal tilt angle range in narrow gap (~5mm) pole piece geometries, while maintaining microscope resolution.

A fully jeweled mechanism provides ultra-precise, in-plane specimen rotation, while maintaining eucentricity.

The FlexiClamp is a spring-type, annular ring which securely clamps the specimen into the specimen cup. It maximizes specimen visibility, even at high tilt angles. A dedicated tool facilitates the use of the FlexiClamp.

Initially, the specimen can be fully rotated through 360º to orient either the grid bars or a specimen feature to the alpha tilt axis. Once the specimen is properly oriented, the first tilt series is acquired. A two-position precision indexing mechanism provides 90º in-plane rotation. These features greatly facilitate the acquisition of a dual-axis tilt series.


Tomographic reconstruction of high pressure frozen B-lymphocytes.
Courtesy of W.J.C. Geerts, Department of Molecular Cell 
Biology, Utrecht University, (The Netherlands). Specimen preparation 
was done by D. Zeuschner, Department of Cell Biology, University 
Medical Center Utrecht (The Netherlands)
Dual-axis tomographic reconstructions of CdTe tetrapods.
Courtesy of I. Arslan, J.R. Tong, and P.A. Midgley from the 
Department of Materials Science and Metallurgy, University of 
Cambridge (United Kingdom). A.P. Alivisatos from the University of 
California at Berkeley and Lawrence Berkeley National Laboratory 
(U.S.A.) provided the CdTe tetrapod specimen


Download product literature for the Model 2000 Series Tomography Specimen Holders featuring the Model 2040 Dual-Axis Tomography Holder.

 

View other Model 2000 Series Tomography Specimen Holders



© 2008 E.A. Fischione Instruments, Inc.     Site Last Modified April 20, 2008     Site design and programming A to Z Communications, Inc.