In-house texture measurement using a compact neutron source

Area of Science:

• Materials Science
• Condensed Matter Physics
• Analytical Chemistry

Background:

• Neutron diffraction is crucial for material analysis.
• Compact neutron sources are emerging to improve accessibility.
• Previous precision limitations of compact sources were a concern.

Purpose of the Study:

• To establish and validate precise texture measurements using the RIKEN accelerator-driven compact neutron source (RANS).
• To compare RANS performance with established neutron diffractometers for texture analysis.
• To explore methods for enhancing data reliability and resolution in compact neutron source experiments.

Main Methods:

• Utilized the RIKEN accelerator-driven compact neutron source (RANS) for texture measurements.
• Performed comparative analysis of pole figures and orientation distribution functions.
• Employed Rietveld texture analysis with selective data utilization.

Main Results:

• Achieved precise neutron diffraction texture measurement capabilities at RANS.
• Demonstrated the value of fine neutron detector panel division for stereographic resolution.
• Showed that Rietveld texture analysis enhances measurement reliability.

Conclusions:

• Compact neutron sources can achieve high-precision texture measurements.
• Technical advancements at RANS facilitate accessible engineering material evaluation.
• Findings can improve data collection efficiency at large-scale facilities.