A versatile diamond anvil cell for X-ray inelastic, diffraction and imaging studies at synchrotron facilities

Area of Science:

• High-pressure physics
• Materials science
• Geophysics

Background:

• Diamond anvil cells (DACs) are crucial for high-pressure research.
• Existing DAC designs often have limitations in terms of sample accessibility and compatibility with various experimental setups.

Purpose of the Study:

• To introduce a new diamond anvil cell (mBX110) design.
• To combine the benefits of membrane and screw-driven pressure generation.
• To enhance compatibility with synchrotron X-ray techniques and diverse experimental conditions.

Main Methods:

• Development of the mBX110 diamond anvil cell.
• Integration of membrane and screw mechanisms for pressure control.
• Testing compatibility with gas-loading systems and temperature environments.
• Utilizing large opening angles (85°, 110°, 150°) for various X-ray techniques.

Main Results:

• Demonstrated high-pressure generation up to 280 GPa.
• Successful single-crystal diffraction of stishovite to 55 GPa.
• Performed X-ray powder diffraction on rutile-GeO2 and tungsten.
• Obtained X-ray Raman spectra of Si L-edge in silica to 95 GPa.
• Measured Fe Kβ X-ray emission spectra on basalt glass to 17 GPa.

Conclusions:

• The mBX110 offers a versatile and robust platform for high-pressure research.
• Its design facilitates a wide range of synchrotron-based X-ray measurements.
• The cell is suitable for both laboratory and large-scale facility applications.