Technical Information Magazine 202201-01 Micro Droplets Using X-ray CT

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last updated：Mar 24, 2025

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X-ray microscopy allows for non-destructive observation of the internal structure of samples with high spatial resolution on the order of micrometers, and three-dimensional morphology can also be observed through CT measurements.

The technical information magazine The TRC News provides the latest information on analytical techniques that are useful for research and development, solving production troubles, and quality control. **Abstract** X-ray microscopy is a device that allows for non-destructive observation of the internal structure of samples with high spatial resolution on the order of micrometers. By performing CT (computed tomography) measurements, it is also possible to observe three-dimensional morphology. The application of X-ray CT measurements, which can perform transmission imaging, is particularly effective in evaluating conditions such as the contact state between liquids and materials, and the presence of liquids within materials that have voids, which is difficult with electron microscopy. This paper introduces a new approach to applying liquids to material surfaces and interiors, as well as methods for performing X-ray CT measurements without drying, and presents several case studies of three-dimensional observations and contact angle measurements at liquid/solid interfaces. **Table of Contents** 1. Introduction 2. Observing Microscopic Droplets: Features of X-ray CT Equipment 3. Applying Microscopic Droplets 4. Measuring Microscopic Droplets 5. Conclusion

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Technical Information Magazine The TRC News "Three-Dimensional Observation of Microscopic Liquid Droplets Using X-ray CT" [Abstract] X-ray microscopy is a device that allows non-destructive observation of the internal structure of samples with high spatial resolution on the order of micrometers. By conducting CT (computed tomography) measurements, three-dimensional morphology observation is also possible. The application of X-ray CT measurements, which can perform transmission imaging, is particularly effective for evaluating the contact state between liquids and materials, as well as the presence of liquids within materials that have voids, which is difficult with electron microscopy. This article introduces a new approach to applying liquids to material surfaces and interiors, as well as methods for conducting X-ray CT measurements without drying. It presents several examples of three-dimensional observations of liquid/solid interfaces and contact angle measurements. [Table of Contents] 1. Introduction 2. Observing Microscopic Liquid Droplets: Features of X-ray CT Equipment 3. Applying Microscopic Liquid Droplets 4. Measuring Microscopic Liquid Droplets 5. Conclusion [Figures and Tables] Figures 1-11 X-ray CT observation results (water droplets on lotus leaves, hydrophobic yogurt lids, water droplets sprayed on PE film, ink droplets remaining in a ballpoint pen ink cartridge, condensation inside a non-woven mask, etc.)