Rayos x de sincrotrón Microdiffraction y proyección de imagen de fluorescencia de las muestras de rocas y minerales

Overview

This article describes a beamline setup for rapid two-dimensional x-ray fluorescence and x-ray microdiffraction mapping of single crystal or powder samples. The technique provides valuable information about strain, orientation, phase distribution, and plastic deformation.

Key Study Components

Area of Science

• Mineralogy
• Petrology
• Material Science

Background

• X-ray microfluorescence and microdiffraction allow for correlated elemental and crystallographic analysis.
• Samples can be up to 10 centimeters without vacuum requirements.
• Technique simplifies sample preparation compared to EBSD.
• Applicable to both natural and synthetic samples, including those that have undergone plastic deformation.

Purpose of Study

• To analyze grain and phase distribution in mineralogy and petrology.
• To provide insights into mineral physics and chemistry.
• To improve the understanding of plastic deformation in rocks.

Methods Used

• Attach crystalline sample to a kinematic base.
• Ensure the region of interest is vertically displaced by at least 15 millimeters.
• Mount the base on the stage in the experimental hutch.
• Conduct measurements in a closed hutch environment.

Main Results

• Successful mapping of strain and orientation in samples.
• Correlated elemental and crystallographic data obtained.
• Facilitated analysis of both natural and synthetic samples.
• Demonstrated effectiveness in studying plastic deformation.

Conclusions

• The method enhances the understanding of mineralogical and petrological properties.
• It simplifies the sample preparation process significantly.
• Offers a versatile approach for studying various types of samples.

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