D10 - Single-crystal four-circle diffractometer with three-axis energy analysis

D10 is unique in being the only four-circle diffractometer with optional energy analysis as on three-axis spectrometers. It also possesses a unique four circle dilution cryostat for temperatures down to 0.1K, and offers high reciprocal-space resolution and low intrinsic background, to medium real-space resolution.

In 2022-2023 the instrument D10 is being upgraded to a new D10+ spectrometer. It will be relocated on a new m=2 H24 thermal guide. The upgrade includes the primary as well the secondary spectrometers with new bidimensional detector. It will be equipped also with a new analyser axis with continuous change of the incident wavelength. The expected gain in efficiency can reach a factor 8.

The spectrometer is assembled and ready for commisioning for the next reactor cycle (February 2023).

Applications

Conventional crystallography

Magnetic crystal structures
Modulated structures
Phase transitions, phase diagrams
Diffraction at extremely high or low temperatures, under pressure, or in high magnetic fields
Diffuse scattering
Quasi-elastic scattering
Crystalline thin films and multilayers
Inelastic scattering in four-circle geometry

Instrument layout

This layout regroups several of the options of D10 (eulerian cradle, analyser, flat-cone detector) while they are not used all at the same time. The advanced He-3 cryostat is not shown except for the air cushion platform for its liquid He-4 Dewar.