Goniometer head crystallography

  • What is the use of goniometer in XRD?

    A goniometer in an X-ray diffraction device comprises a sample table rotatably provided about a center axis of a sample for holding a sample, an X-ray source rotatably provided about the center axis of the sample for irrdiating first X-ray onto a sample, and an X-ray detector rotatably provided about the center axis of .

  • What is the Weissenberg method of crystallography?

    A testing method for the x-ray analysis of the structure of a crystal.
    As the crystal is rotated in the x-ray beam, the photographic plate is placed parallel to the axis of rotation, the crystal being enclosed by a sleeve with a slot placed so as to transmit only a single layer line..

  • Thus, the detector screen will show diffraction spots from the different reciprocal planes forming small "lunes" on the diagram (figure on the right).
    A "lune" is a plane figure bounded by two circular arcs of unequal radii, i.e., a crescent.
Supper Goniometer Heads are fine, precise and ultra-stable instruments for mounting crystallographic specimens. They are backlash free, yet move smoothly. The 

How to use a goniometer correctly?

A

Align the stationary arm of the goniometer with the midline of the forearm

B

Ensure the movable arm of the goniometer is parallel to the third metacarpal

C

Hold the stable arm of the goniometer in line with the second metacarpal

What is an automated goniometer head?

The automated goniometer head (AGH) allows fast alignment of your sample to the center of the goniometer

Our innovative X-ray based automated software centering gets you the best diffracting part of the sample into the beam

The AGH is based on robust long-life time piezo motors ensuring highest reliably and accuracy

What is the science of Goniophotometry?

This guide explains the science of goniophotometry, including the IES motion types (A, B & C), what motion type to use when testing different types of lighting product, the importance of making measurements in the photometric far-field, and the pros and cons of configuring your system with either a photometer, a colorimeter or a spectroradiometer


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