The engineers who built the massive external fuel tank that will power the shuttle Discovery into orbit this spring used sophisticated X-ray detectors developed by UF researchers to reduce the chance of a defect in the foam insulation covering the tank. The detectors, first invented as a new technology to find land mines, can identify tiny gaps, or air-filled voids, in the insulating foam without causing any damage. It is believed that such a gap – possibly located between the foam and the tanks surface – caused a suitcase-sized piece of foam to break off during Columbias liftoff in January 2003. The chunk struck the edge of the shuttles left wing, seriously damaging it and spurring the shuttles destruction during re-entry on Feb. 1.
"We can do the inspection of the foam as it exists already sprayed onto the tank. We dont have to cut into it," said Warren Ussery, team leader for the return to flight nondestructive evaluation team at Lockheed Martins Michoud Assembly Facility in New Orleans, where the shuttles external tanks are manufactured. "Were able to find critical voids with that (the UF detector)."
UF nuclear engineering professor Ed Dugan and retired UF nuclear engineering professor Alan Jacobs began experimenting with the modified "backscatter" X-ray detector several years ago as part of research aimed at engineering a more effective landmine detector. Conventional X-ray machines propel radiation through a target object to radiographic film on the other side. Different objects absorb X-rays to differing extents, so some show up more prominently on film than others. Backscatter X-ray machines were developed for circumstances when it is impossible to place film behind the object, as is the case with the shuttle tank. Contrasting conventional machines, they obtain images by capturing the radiation scattered "back" from the target.
Ed Dugan | EurekAlert!
IHP technology ready for space flights
20.08.2018 | IHP - Leibniz-Institut für innovative Mikroelektronik
It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries
20.08.2018 | Forschungszentrum Jülich
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
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20.08.2018 | Information Technology