Von Hamos Spectrometer

The standard configuration of the von Hamos spectrometer can accommodate 16 crystals, each positioned by three actuators, providing a total number of 48 motors.

The actuators are connected to the crystal holders in a kinematic setup, and each crystal is easily exchanged by a magnetic snap-on mounting.

This is in particular useful for experiments that require different crystal orientations e.g., Si(111) and Si(220), as in the publication of A. M. March et. al. in J. Phys. Chem. C 2017, 121, 2620−2626 that utilizes the JJ X-Ray von Hamos spectrometer.

The spectrometers can be delivered with or without crystals and with or without motor controllers or drives.

Von Hamos is also available in a vacuum version.

Reduced size von Hamos
The von Hamos spectrometer can be configured in many different setups. Examples are 4 x 1 single row configuration or a 2 x 2 configuration.

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Crystal size
110 x 30 mm2

Mechanical actuator resolution
0.275 µm/step

Horizontal angular resolution
4.04 µrad/step

Vertical angular resolution
12.5 µrad/step

Linear actuator stroke
20 mm

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