ID15B - High Pressure Diffraction Beamline

Synopsis

Beamline ID15B is dedicated to the determination of structural properties of solids at high pressure using angle-dispersive-diffraction with diamond anvil cells.

Status: open

Disciplines

Physics
Earth and Planetary Sciences
Materials and Engineering
Chemistry

Applications

Fundamental physics
New materials
Earth science
Chemistry
Mineralogy
Energy research

Techniques

Powder diffraction
Single-crystal diffraction
Diffuse X-ray scattering
Imaging, phase-contrast

Energy range

30.0 keV

Beam size

Minimum (H x V) : 2.0 x 1.0 µm²
Maximum (H x V) : 30.0 x 30.0 µm²

Sample environments

Membrane-type diamond anvil cells (0-200 GPa)
Automatic pressure controller
Liquid He cooled cryostat to perform high pressure experiments at low temperatures (down to 10K)
Resistive heating equipment for high temperatures up to 1500K
Online and laboratory Nd-YAG laser system for high temperature annealing of samples inside the diamond anvil cell

Detectors

Large area EIGER2 X 9M CdTe (340x370 mm) flat panel detector
In-situ ruby fluorescence measurement for pressure determination
In-situ Raman spectrometer
White beam microscope (Optics Peter) combined with a high-resolution CCD camera (resolution 0.2 μm)

Technical details

The beam from an in-vacuum U20 insertion device is focused by vertical and horizontal transfocator and monochromatized by Si(111) Bragg monochromator. The working energy for high pressure experiments is 30 keV with a flux of 10¹² photons/s at 200 mA resulting in typical exposure times of 1 sec. The beam size on the sample can vary between 30 x 30 µm² to as small as 1 x 2 µm² (v x h) for megabar pressure experiments.

Reference publication:

G Garbarino, ME Hanfland, S Gallego-Parra, AD Rosa, M Mezouar, D. Duran, K. Martel, E. Papillon, T. Roth, P. Got, J. Jacobs (2024) Extreme conditions x-ray diffraction and imaging beamline id15b on the esrf extremely brilliant source High Pressure Research 44 (3), 199-216