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HTD2: a single‐crystal X‐ray diffractometer for combined high‐pressure/low‐temperature experiments at laboratory scale

Fischer, Andreas
Langmann, Jan
Vöst, Marcel
Eickerling, Georg
Scherer, Wolfgang
DOI: https://doi.org/10.1107/S160057672200766X
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10353
Fischer, Andreas; Langmann, Jan; Vöst, Marcel; Eickerling, Georg; Scherer, Wolfgang, 2022: HTD2: a single‐crystal X‐ray diffractometer for combined high‐pressure/low‐temperature experiments at laboratory scale. In: Journal of Applied Crystallography, Band 55, 5: 1255 - 1266, DOI: 10.1107/S160057672200766X.
 
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  • Abstract
High‐pressure (HP) X‐ray diffraction experiments at low temperature (LT) require dedicated instruments as well as non‐standard sample environments and measuring strategies. This is especially true when helium cryogenic temperatures below 80 K are targeted. Furthermore, only experiments on single‐crystalline samples provide the prerequisites to study subtle structural changes in the p–T phase diagram under extreme LT and HP conditions in greater detail. Due to special hardware requirements, such measurements are usually in the realm of synchrotron beamlines. This contribution describes the design of an LT/HP diffractometer (HTD2) to perform single‐crystal X‐ray diffraction experiments using a laboratory source in the temperature range 400 > T > 2 K while applying pressures of up to 20 GPa.
 
The design and operation of a newly commissioned single‐crystal X‐ray diffractometer (HTD2) are presented. The device enables experiments under simultaneous low‐temperature and high‐pressure conditions using a laboratory X‐ray source.
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  • Geochemie, Mineralogie, Petrologie [395]
Subjects:
HTD2
low temperature
high pressure
single crystals
instrumentation
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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