Research & Applications

Brent Park, NNSA deputy administrator for Defense Nuclear Nonproliferation. Photo: NNSA

The National Atomic Testing Museum is hosting a free webinar on July 30 at 9 p.m. (EDT) featuring Brent Park, the National Nuclear Security Administration's deputy administrator for Defense Nuclear Nonproliferation. Registration is required.

The webinar is part of the museum’s Distinguished Lecture Series.

Park, a nuclear physicist with 30 years of experience at Department of Energy national laboratories, currently leads the NNSA's efforts to prevent nuclear weapons proliferation and reduce the threat of nuclear and radiological terrorism around the world.

Representatives from African countries assembled in 2019 at an event hosted by Nigeria to discuss the need for assistance in nuclear medicine and radiology. Photo: NNSA

The U.S. National Nuclear Security Administration has awarded grants totaling $1.5 million to support an increase in medical staff and the building of facilities and equipment in sub-Saharan Africa, the agency announced on July 27.

The grants of $750,000 each were awarded to the Radiological Society of North America (RSNA) and the Society of Nuclear Medicine and Molecular Imaging (SNMMI).

The Bruce plant near Kincardine, Ontario. Photo: Bruce Power

Bruce Power announced on July 20 that it has signed a memorandum of understanding with Isogen, a joint venture of Framatome and Toronto-based Kinectrics, and BWXT ITG Canada to advance feasibility work for the production of molybdenum-99. Mo-99 is the radioisotope most commonly used in nuclear medicine for diagnostic imaging and the detection of disease, along with other medical isotopes that are growing in demand.

The radio frequency quadropole has been matched with the ion source and the low-energy beam transmission line at UCLouvain, an SCK-CEN partner site. Photo: SCK-CEN

The MYRRHA accelerator team has successfully sent a proton beam through the radio frequency quadrupole (RFQ) of a project billed as “the world’s first large-scale accelerator-driven system.” MYRRHA, which stands for Multi-purpose hYbrid Research Reactor for High-tech Applications, will be built at SCK-CEN’s site in Mol, Belgium, and will consist of a subcritical lead-bismuth eutectic (LBE)–cooled nuclear reactor driven by a high-power linear accelerator (LINAC).

The country of Mauritius is using nuclear technology to develop new tomato varieties that can thrive in hotter temperatures. The new high-yielding and heat-tolerant tomato seeds have been distributed to the country’s farmers, helping to protect a national industry valued at US$14 million annually, the International Atomic Energy Agency reported on July 15.

The IAEA, in partnership with the Food and Agriculture Organization of the United Nations (FAO), assisted the Food and Agricultural Research and Extension Institute (FAREI) in Mauritius to develop new tomato varieties using irradiation.

A quantum computer, such as this 50-bit version that IBM demonstrated at the International Consumer Electronics Show in 2018, is capable of solving tasks inaccessible to the most powerful “classic ” supercomputer. (Photo: IBM)

Rosatom, Russia’s state atomic energy corporation, and the Russian Quantum Center (RQC) on July 7 announced the creation of the first laboratory in Russia to research and develop machine learning and artificial intelligence (AI) methods on quantum computers, specializing in the application of these technologies in the nuclear industry. An agreement was signed between the RQC and Tsifrum, a Rosatom subsidiary that was created in 2019 to support the implementation of Rosatom’s digitalization strategy.

The Ghana Research Reactor-1, located in Accra, Ghana, was converted from HEU fuel to LEU in 2017. Photo: Argonne National Laboratory

In late 2018, Nigeria’s sole operating nuclear research reactor, NIRR-1, switched to a safer uranium fuel. Coming just 18 months on the heels of a celebrated conversion in Ghana, the NIRR-1 reboot passed without much fanfare. However, the switch marked an important global milestone: NIRR-1 was the last of Africa’s 11 operating research reactors to run on high-enriched uranium fuel.

The 40-year effort to make research reactors safer and more secure by replacing HEU fuel with low-enriched uranium is marked by a succession of quiet but immeasurably significant milestones like these. Before Africa, a team of engineers from many organizations, including the U.S. Department of Energy’s Argonne National Laboratory, concluded its conversion work in South America and Australia. Worldwide, 71 reactors in nearly 40 countries have undergone conversions to LEU, defined as less than 20 percent uranium-235. Another 31 research reactors have been permanently shut down.

A new report from the American Institute of Physics declares the physical sciences to be at a “tipping point” between a “perilous” future and a “vibrant” one as a result of the coronavirus pandemic. The 28-page report, Peril and Promise: Impacts of the COVID-19 Pandemic on the Physical Sciences, outlines several areas where the scientific community has been tested by the pandemic and examines what the future could look like for the workforce, infrastructure, and conduct of research. Further, the report challenges leaders in government, academia, the private sector, and other areas who depend on the physical sciences to craft specific recommendations to address the pandemic’s impacts.

According to a recent story published by AAAS, researchers from the Facility for Rare Isotope Beams Laboratory at Michigan State University have taken a major step toward a theoretical first-principles description of neutrinoless double-beta decay.

The accelerator-based BNCT system under construction at Nagoya University, shows the electrostatic proton accelerator (on the left) and beam transport line toward the neutron production target (on the right). Photo: Nagoya University

The International Atomic Energy Agency has signed an agreement with Japan’s Okayama University that provides a three-year framework for enhanced cooperation in boron neutron capture therapy (BNCT), the IAEA announced on June 24. BNCT is a noninvasive therapeutic technique for treating invasive malignant tumors.

Overlapping X-ray data of the SARS-CoV-2 main protease shows structural differences between the protein at room temperature (orange) and the cryogenically frozen structure (white). Graphic: Jill Hemman/ORNL, U.S. Dept. of Energy

A team of researchers at the Department of Energy’s Oak Ridge and Argonne national laboratories has performed the first room-temperature X-ray measurements on the SARS-CoV-2 main protease, the enzyme that enables the virus to reproduce.

The X-ray measurements mark an important first step in the researchers’ ultimate goal of building a comprehensive 3D model of the enzymatic protein.

The Department of Energy on June 23 announced the selection of 76 scientists from across the United States—26 from the DOE’s national laboratories and 50 from U.S. universities—to receive significant funding for research as part of the DOE Office of Science’s Early Career Research Program. The effort, now in its 11th year, is designed to bolster the nation’s scientific workforce by providing support to exceptional researchers during the crucial early career years, when many scientists do their most formative work.

Nuclear technology for space exploration just took a giant step forward. Researchers at the National Nuclear Security Administration and the National Aeronautics and Space Administration have conducted a series of tests as part of NASA’s Kilopower project for the development of a nuclear space reactor. The results have been published in a special issue of the American Nuclear Society’s journal Nuclear Technology, which includes eight papers that cover the design and testing of the Kilowatt Reactor Using Stirling TechnologY (KRUSTY) reactor, a 1-kWe space reactor with a cast uranium core, heat pipes, and Stirling engine power conversion.

Brouillette

Energy Secretary Dan Brouillette said in a June 1 announcement to Department of Energy employees that given the recent lifting of stay-at-home orders in the Washington, D.C., area, the department will allow some federal employees to return to work at DOE headquarters, beginning on June 8.

The 1,250-ton cryostat base is positioned over the ITER tokamak pit for installation. The base is the heaviest lift of the tokamak assembly. Photo: ITER

ITER, the world’s largest international scientific collaboration, is beginning the assembly of the fusion reactor tokamak that will include 12 essential hardware systems provided by US ITER, which is managed by Oak Ridge National Laboratory. The first major machine element to be installed is the 1,250-ton base of the cryostat, which was placed into the tokamak assembly pit on May 26. ITER is located in southeastern France.

To get a job done, you need the right tool. Researchers now have one that will make their job easier—the Radioactivity and Damage (RAD) Calculator from the Department of Energy’s Nuclear Science User Facilities.

Most experiments conducted through the NSUF have the same underlying goal: quantifying irradiation effects on nuclear fuels and materials. Rather than doing a back-of-the-envelope calculation or a costly in-depth analysis with a nuclear engineer, users now have the flexibility to rapidly change experimental design parameters—such as selecting the reactor to be used, the sample location within the reactor, displacements per atom desired, and the time frame—and see which NSUF reactor can produce the desired result, all within seconds.

An artist’s impression of what a nuclear thermal ship built to take humans to Mars could look like. Photo: NASA

There are a lot of reasons that a faster spaceship is a better one, and nuclear-powered rockets are a way to achieve this, according to an article posted on the Conversation website on May 20.

View of the top of the TREAT reactor.

The Transient Reactor Test (TREAT) Facility at Idaho National Laboratory was restarted in 2018 after being in safe standby mode since 1994. The June 2020 issue of the American Nuclear Society's Nuclear Technology (NT) journal features seven technical papers related to the benchmarking of the facility. Wade Marcum, a lead researcher on the project and guest editor of June’s NT issue, explained, “The goal of this effort was to understand, to the best of our ability, the expected response of the TREAT reactor upon its restart.”