Instrumentation at Oak Ridge National Laboratory’s Spallation Neutron Source, an accelerator-based facility that provides the most intense pulsed neutron beams in the world for scientific research and industrial development. (Photo: ORNL)
Researchers advancing particle accelerator technology for medical, security, energy, and industrial applications have a new funding opportunity announced on February 16 by the Department of Energy’s Office of Science (DOE-SC). The funding will support research to advance particle accelerator technology for medical, security, energy, and industrial applications. Grants will be awarded for work focused on innovation, technology transfer, and supply chain resiliency that falls under one of two DOE-SC programs: the Accelerator Stewardship program, which supports cross-disciplinary teams to solve high-impact problems, and the Accelerator Development program, which is aimed at strengthening domestic suppliers of accelerator technology.
IAEA director general Rafael Mariano Grossi (left) and WHO director general Tedros Adhanom Ghebreyesus. (Photo: IAEA)
The International Atomic Energy Agency has launched the Rays of Hope program to tackle a severe shortage of cancer care capacity in poorer countries. The program’s initial focus will be on Africa, where people often die from the disease because of the lack of access to potentially life-saving nuclear medicine and radiotherapy, according to the IAEA.
A video on the program is available on YouTube.
A rendering of the Natrium plant. (Image: TerraPower)
Natrium, a 345-MWe sodium fast reactor with a molten salt energy storage system, was developed by TerraPower and GE Hitachi Nuclear Energy. TerraPower is planning to build the first Natrium demonstration reactor by 2028 with 50-50 cost-shared funding of about $2 billion from the Department of Energy’s Advanced Reactor Demonstration Program. And for the requisite data and testing of reactor components to support that deployment, TerraPower is looking to Japan—a country with decades of experience developing sodium fast reactor designs and testing infrastructure.
[CLICK TO VIEW FULL IMAGE] The diagram at left illustrates the experimental setup and the resulting zirconium oxide layer of varying thickness. The second diagram shows the circular zirconium alloy sample that is affected by the band of nickel alloy and radiation. Finally, the electron image at right shows a band of oxidation on the zirconium alloy sample. (Images: Peng Wang, Michigan Ion Beam Laboratory)
A longstanding issue in boiling water reactors—shadow corrosion on zirconium alloy fuel rods and fuel channels—has been reproduced in the Michigan Ion Beam Laboratory as part of an effort to understand and prevent the phenomenon. Research led by Peng Wang, a University of Michigan assistant research scientist in nuclear engineering and radiological sciences, was published in the January 2022 issue of the Journal of Nuclear Materials and described in a recent university news article.
(CLICK IMAGE TO ENLARGE) The researchers’ experimental layout is depicted here. In (b), the neutron chopper is depicted without the mesh guard shown in (d), a photograph of the experimental layout that includes the Cf-252 source tank at left. (Composite image: Joyce, et al., “Wireless information transfer with fast neutrons,” doi.org/10.1016/j.nima.2021.165946)
Swapping conventional electromagnetic radiation for fast neutrons, a team of research engineers at Lancaster University in the United Kingdom, working with the Jozef Stefan Institute of Slovenia, report that they have successfully transmitted digital information wirelessly using nuclear radiation. The researchers’ attempts to transmit words and numbers using standard ASCII code “were 100 percent successful,” according to a November 10 press release from Lancaster University. Their research will be published in an upcoming issue of Nuclear Instruments and Methods in Physics Research and is now available online.
Physicist Suying Jin with computer-generated images showing the properties of heat pulse propagation in plasma (Image: PPPL/Jin/Kiran Sudarsanan)
Researchers at the Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) have developed a new model of how heat flows within plasmas. According to PPPL, the model could improve insights into the behavior of plasmas and may help engineers avoid the conditions that could lead to heat loss in future fusion facilities.
A rendering of the core of the NBSR, which consists of 30 aluminum-cladded plate-type U3O8 fuel elements with a 17.8-cm gap between elements. (Image: NCNR Technical Working Group, Root Cause Investigation of February 2021 Fuel Failure)
(CLICK IMAGE TO ENLARGE)
The National Institute of Standards and Technology (NIST) has submitted two reports and supplemental information to the Nuclear Regulatory Commission after conducting a root cause analysis of the February 2021 fuel failure and resultant alert at the NIST Center for Neutron Research (NCNR) in Gaithersburg, Md. While the 20-MWt NCNR research reactor remains shut down, scuttling the plans of researchers who rely on it as a source of both cold and thermal neutrons, NIST states in an October 4 update that it has requested permission to restart the reactor, contingent upon meeting all 18 corrective actions identified.
During a fluorescence spectroscopy experiment at LLNL, the protein lanmodulin makes radioactive curium glow when exposed to UV light in the sample to the right. The schematic (left) represents the structure of the curium-protein complex, with three curium atoms bound per molecule of protein. (Photo: LLNL)
Scientists at Lawrence Livermore National Laboratory, working in collaboration with researchers at Penn State University and Harvard Medical School, have discovered a new mechanism by which radionuclides could spread in the environment.
The research, which has implications for nuclear waste management and environmental chemistry, was published in the Journal of the American Chemical Society on September 20.
(Source: Screen shot from YouTube video)
While it has been known for decades that bacteria known as Geobacter could clean up uranium waste, researchers at Michigan State University recently uncovered the biological mechanism behind the bacteria’s ability to do it.
A rendering of the VTR facility. (Image: INL)
Kathryn Huff, the Department of Energy’s acting assistant secretary for nuclear energy, asserted in an article published online by the Office of Nuclear Energy (DOE-NE) on July 30 that demonstration reactors, such as the Natrium and Xe-100 reactors being built as full-size power producers with cost-shared funding from the DOE, and test reactors, such as the Versatile Test Reactor, are both necessary for nuclear innovation. Both are also line items in the DOE budget request, and Huff’s article sends a clear message to appropriators about the need to fund both the Advanced Reactor Demonstration Program (ARDP) and the VTR.
First concrete pour for research reactor begins at Bolivian nuclear research center. (Photo: Rosatom)
Key facilities at a multipurpose nuclear research center in the high plains of Bolivia are nearing operation, and a ceremonial first concrete pour for the nuclear research reactor that will serve as the centerpiece of the project was held on July 26. Bolivian president Luis Arce attended the ceremony at the Center for Nuclear Technology Research and Development (CNTRD). Also attending were Kirill Komarov, first deputy director general for corporate development and international business at Rosatom (Russia’s state atomic energy agency), and authorities from the Ministry of Hydrocarbons and Energies and the Bolivian Nuclear Energy Agency (ABEN).
Argonne marks its 75th anniversary on July 1. (Image: Argonne)
Seventy-five years ago today, on July 1, 1946, the first U.S. national laboratory was chartered with the singular mission of developing the peaceful uses of nuclear energy. Now, the Department of Energy’s Argonne National Laboratory is one of the nation’s largest science laboratories, working on diverse challenges in energy, climate, science, medicine, and national security.
The Crab nebula, an iconic Milky Way supernova remnant, as viewed by the Herschel Space Observatory and the Hubble Space Telescope. (Image: NASA, ESA, and Allison Loll/Jeff Hester, Arizona State University)
Traces of freshly made plutonium and radioactive iron recovered from the bottom of the Pacific Ocean are contributing to an understanding of how heavier elements are created from exploding stars and other cosmic events, according to a National Public Radio report.