TECHNICAL SPECIFICATIONS
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
Von Hamos for 16 crystals
Single row von Hamos (for 4 crystals)
The 6-axes stage for the von Hamos spectrometer installed at the FXE beamline at the European XFEL
Von Hamos spectrometer on a stage with six degrees of freedom (three rotations and three linear)
Von Hamos for vacuum
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.
