University of Edinburgh adopts confocal measurement system for faster, more accurate sensing

The system enables the optical centring of a diamond-anvil cell (DAC) in X-ray diffraction experiments, used to determine the structures of molecules and other compounds in the crystalline state. Compared
with previous methods, the confocal measurement system is more accurate and significantly reduces the time required for centring.

The confocal measurement system comprises a confocal IFS2406-3 confocal chromatic sensor with a measuring
range of 3mm, and a confocal IFC2421 single-channel controller. With a resolution of 32nm (static) and linearity of <±1.5µm, the sensor is fixed into position using a JMA adjustable mounting adapter,
which simplifies the alignment and any fine adjustments.

What is a DAC used for?
X-ray diffraction is the most widely used tool for studying the structures of materials at the atomic level.
Its most famous application was in the determination of the structure of DNA, but it is used routinely in modern research in chemistry, physics, biology and geology. 

Read the full article in DPA's July 2024 issue