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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 883 records · Page 49
All sourcesNASA NTRSDOE OSTI
DOE OSTI2022

The Next Generation of MeV Energy X-ray Sources for Use in the Inspection of Additively Manufactured Parts for Industry

In September 2022, we investigated whether we can change the way we perform non-destructive characterization (NDC) of dense, micrometer-scale objects, e.g., additively manufactured (AM) parts, using the BELLA inverse Compton source (ICS). X-ray computed tomography (CT) is the most suitable technique for NDC of these objects, but often requires x-rays with MeV energy for penetration, sub-mm spatial resolution for small structures, a narrow spectrum for low-artifact images, and the ability to tune x ray energy to image a wide range of materials. The BELLA ICS has the unique potential to produce such an x-ray beam with a repetition rate high enough for CT. We scanned a geometric calibration phantom, fabricated by LLNL, a bearing, and an AM part manufactured by Renishaw. We reconstructed the first CT images of their kind. The results are very promising, and LLNL will present our findings at an SPIE conference.

42 ENGINEERING↗
DOE OSTI2022

Development of a Pipe Crawler Inspection Tool for Fossil Energy Power Plants

This document presents the final report of the research activity completed during the four years of the project and includes the major challenges and accomplishments. The report presents specific details of the engineering processes and methodologies used to develop the robotic crawler and complete the project milestones. In particular, the report includes sections that address the problem statement, background, development of crawler modules, bench scale testing, simulation development and full scale testing. The report concludes with a discussion on potential paths forward and concluding remarks.

20 FOSSIL-FUELED POWER PLANTS↗