The Michigan Engineer News Center

Four engineering students awarded for innovations in nuclear fuel cycles

Four U-M engineering students placed in the 2012 Fuel Cycle Innovations Research program of the U.S. Department of Energy. | Short Read

Four U-M engineering students placed in the 2012 Fuel Cycle Innovations Research program of the U.S. Department of Energy. Mark Norsworthy, a PhD student in the department of Nuclear Engineering and Radiological Sciences (NERS), won first prize in the category for keeping track of radioactive materials. Jason von Ehr, also from NERS, is one of five winners in the undergraduate competition for his studies of how best to store radioactive waste. Tyler Moss, a PhD student in Materials Sciences, placed second in the category focused on improving materials for radioactive environments and Randolf Schiffer, now a Masters student in electrical engineering, is another undergraduate winner for his work in acquiring radiation data.

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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read