The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
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Newswise: Nuclear Physics Detector Tech Used in Cancer Treatment Monitoring System
Released: 21-Aug-2019 4:05 PM EDT
Nuclear Physics Detector Tech Used in Cancer Treatment Monitoring System
Department of Energy, Office of Science

The OARtrac® system includes technologies that are based on a novel application of scintillating material in fiber form. Doctors can insert these scintillating fibers into the human body via a catheter to monitor the radiation that cancer patients receive in a range of hard-to-reach areas.

Newswise: Machine Learning Helps Create Detailed, Efficient Models of Water
Released: 9-Aug-2019 3:05 PM EDT
Machine Learning Helps Create Detailed, Efficient Models of Water
Department of Energy, Office of Science

A team devised a way to better model water’s properties. They developed a machine-learning workflow that offers accurate and computationally efficient models.

Newswise: Cultivating the Assembly Landscape
Released: 8-Aug-2019 3:05 PM EDT
Cultivating the Assembly Landscape
Department of Energy, Office of Science

For the first time, a team determined and predictably manipulated the energy landscape of a material assembled from proteins. Designing materials that easily and reliably morph on command could benefit water filtration, sensing applications, and adaptive devices.

Newswise: A Change in Structure for a Superheavy Magnesium Isotope
Released: 7-Aug-2019 3:05 PM EDT
A Change in Structure for a Superheavy Magnesium Isotope
Department of Energy, Office of Science

A recent measurement exploring the structure of magnesium-40 has shown a surprising change in the structure relative to expectations. This unanticipated change could be pointing to physics missing from our theories, such as the effects of weak binding between particles.

Newswise: A Search for New Superheavy Isotopes
Released: 3-Jul-2019 10:05 AM EDT
A Search for New Superheavy Isotopes
Department of Energy, Office of Science

If you chart the stability of atomic cores (nuclei), the trend is that adding more protons and neutrons makes the atom less stable. However, there’s an island of stability that bucks this trend. If scientists can provide an easier way of producing elements predicted to be on that island of stability, they can fine-tune today’s nuclear models. Such elements were difficult to produce, until a team built an apparatus that efficiently produces superheavy elements by transferring multiple nucleons (either protons or neutrons).

Newswise: Improved Fuel Cell Catalysts with Less Platinum
Released: 2-Jul-2019 10:05 AM EDT
Improved Fuel Cell Catalysts with Less Platinum
Department of Energy, Office of Science

Scientists have identified highly active yet stable catalysts for use in fuel cells that contain only a quarter of the platinum as compared to existing devices. Platinum is essential for promoting reactions in these fuel cells. However, the precious metal is rare and expensive. Interactions between platinum-cobalt particles and a precious metal-free support contribute to the improved performance.

Newswise: New Insights into a Long-Standing Debate About Materials that Turn Motion into Electricity
Released: 1-Jul-2019 10:05 AM EDT
New Insights into a Long-Standing Debate About Materials that Turn Motion into Electricity
Department of Energy, Office of Science

For decades, scientists have been intrigued by a class of electronic materials called relaxor ferroelectrics. These lead-based materials can convert mechanical energy to electrical energy and vice versa. The underlying mechanism for this behavior has been elusive. The challenge was getting a detailed view of the atomic structure, critical to resolve the debate concerning the role of local order. Now, novel neutron-based tools and methods have resolved this debate—revealing the relationship of local order motifs and how they affect the underlying properties.

Newswise: Super-stretchy, Self-healing, Tunable Polymers
Released: 28-Jun-2019 2:05 PM EDT
Super-stretchy, Self-healing, Tunable Polymers
Department of Energy, Office of Science

Discovery of novel polymers with extreme stretching, vibration suppression, and self-healing.

Newswise: Super-stretchy, Self-healing, Tunable Polymers
Released: 28-Jun-2019 2:05 PM EDT
Super-stretchy, Self-healing, Tunable Polymers
Department of Energy, Office of Science

Discovery of novel polymers with extreme stretching, vibration suppression, and self-healing.

Newswise: Beyond the “Sound Barrier” to Get the Heat Out
Released: 28-Jun-2019 10:05 AM EDT
Beyond the “Sound Barrier” to Get the Heat Out
Department of Energy, Office of Science

To create materials that handle heat well, scientists are exploring how vibrations within the atomic structure carry heat. Atomic vibrations used to remove heat usually are limited by the speed of sound. A new observation may have shattered that limit. A team of scientists observed particles, called phasons, moving faster than the speed of sound that carry heat. The phasons use a pattern of motion in which atoms rearrange themselves, allowing heat to move faster.


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