Accurate and repeatable beta-tilt

The beta-tilting resolution and accuracy of this double-tilt Heating + Biasing TEM holder are <0.01 degree. The negligible backlash one gets when reversing tilt direction that often makes other double-tilt TEM holders difficult to use is in the same order of magnitude.

The figure on the left shows beta-tilt from 0 to 0.3 to 0 degree with an exact return to 0.0 after tilting the same amount of steps in both directions.