Accurate assessment of the suitability of subsurface rock formations for CO2 containment requires a good understanding of fracture evolution. Researchers combined x-ray microtomography with advanced computer simulations to improve models of fracture development in carbonate-rich shale samples. Read more »
ALS Work Using Tomography
Tomography allows 3D imaging of structures inside samples without the need to physically slice them open. A series of images is collected as a sample is rotated, and the raw data is computationally converted into digital sections that can be stacked to reconstruct 3D visualizations of the sample. The very high flux of x-rays and infrared light at the ALS allows collection of high-quality, high-speed 3D images at nanometer or micrometer resolution. Synchrotron tomography also enables photon-energy tuning for element- and chemistry-specific contrast, as well as phase-contrast imaging.
PepsiCo Explores Future Food Products at the ALS
Global food and beverage giant PepsiCo has been using ALS tomography beamline 8.3.2 to understand more about the chemical structure and behavior of their starch-based snack foods, with the goal of creating a whole new category of snacks that consumers cook at home in their own microwaves. Read more »
In Situ Electrical Resistance and X-Ray Tomography Study of Copper–Tin Polymer Composites during Thermal Annealing
In situ electrical conductivity and x-ray tomography experiments were conducted on a conductive polymer composite containing polyvinylidene fluoride (PVDF) copolymer, copper (Cu), and tin (Sn) during thermal annealing. This study provides detailed insight into the morphological origins of the beneficial effect of thermal annealing on the electrical properties of conductive composites containing low melting metal fillers. Read more »
ALS Gives Intel a Closer Look at Microelectronic Packages
Intel, the world’s largest semiconductor chip maker, has been using the tomography capabilities at the ALS to image their microelectronic packages in 3D at high resolution with short throughput time, providing valuable information for both failure analysis and product development and proving that synchrotrons are an insightful tool for this type of imaging. Read more »
How X-rays Helped to Solve Mystery of Floating Rocks
Some rocks can float on water for years at a time before eventually sinking. X-ray microtomography studies help explain how by scanning samples of lightweight, glassy, and porous volcanic rocks known as pumice stones. Their surprisingly long-lived buoyancy can help scientists discover underwater volcano eruptions. Read more »
Sequencing of Green Alga Genome Provides Blueprint to Advance Clean Energy, Bioproducts
Scientists have sequenced the genome of a green alga that has drawn commercial interest as a strong producer of quality lipids for biofuel production. The chromosome-assembly genome of Chromochloris zofingiensis provides a blueprint for new discoveries in sustainable biofuels, antioxidants, and other valuable bioproducts. Read more »
3D Visualization of Leaves during Drought
The veins of living leaves at increasing levels of drought stress were visualized using x-ray microtomography. The results expand our view of leaf drought responses, beyond the traditional embolism-centric view, to a broader focus on the role of the surrounding living tissues in water movement during drought. Read more »
GE Aviation Delves into Advanced Materials at the ALS
Developing ceramic matrix composites (CMCs) to replace the metal alloys traditionally used in jet engines has been a goal for the aviation industry for decades. For more than a year, GE Aviation has used the tomography capabilities at ALS Beamline 8.3.2 to gain insight into their CMC materials, guiding their engineering and design efforts. Read more »
Mapping the Migration of Genetic Material
A powerful soft x-ray microscope captures tomographic images of the genetic material in the nuclei of nerve cells at different stages of maturity. The detailed 3D visualizations show an unexpected connectivity in the genetic material and provide a new understanding of a cell’s evolving architecture. Read more »
When Rocket Science Meets X-Ray Science
Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and NASA are using x-rays to explore, via 3D visualizations, how the microscopic structures of spacecraft heat shield and parachute materials survive extreme temperatures and pressures, including simulated atmospheric entry conditions on Mars. Read more »
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