A group of researchers analyzed recent updates to the International Nuclear Workers Study (INWORKS) and published their findings—“Cancer mortality after low dose exposure to ionising radiation in workers in France, the United Kingdom, and the United States (INWORKS): cohort study”—in the journal BMJ on August 16. The multinational research team, led by David B. Richardson of the University of California–Irvine, reports “evidence of an increase in the excess relative rate of solid cancer mortality with increasing cumulative exposure to ionizing radiation at the low dose rates typically encountered by French, U.K., and U.S. nuclear workers [and] evidence in support of a linear association between protracted low dose external exposure to ionizing radiation and solid cancer mortality.”

The Canadian government continued advancing its small modular reactor action plan on Saturday with the approval of up to C$74 million (about $54.6 million) in federal funds for SMR development in Saskatchewan, led by the province’s main electricity provider, SaskPower.

The Wyoming Energy Authority (WEA) recently recommended nearly $10 million—$9,999,802 to be exact—in funding from its Energy Matching Funds (EMF) program for a proposed project to deploy a BWXT Advanced Technologies microreactor in the state. (BWXT AT is a subsidiary of BWX Technologies Inc.)

On April 10, the University of Missouri (MU) took its first formal step toward building NextGen MURR when school officials issued the request for qualifications for the project. The RFQ is a solicitation for interested companies to offer the design, engineering, licensing, environmental, and developmental services that are needed for NextGen MURR, planned to be larger and more capable than the school’s existing University of Missouri Research Reactor (MURR)—which itself has been the most powerful research reactor and most intense neutron source on any U.S. campus since it began operating in 1966.

Texas Gov. Greg Abbott sat down with X-energy chief executive officer Clay Sell and Dow chair and CEO Jim Fitterling last week for a “fireside chat” at the University of Texas–Austin on the role of nuclear energy and technology in the state.

The American Nuclear Society has published the following new standard, which is available for purchase in the ANS Store:

ANSI/ANS-8.21-2023, Use of Fixed Neutron Absorbers in Nuclear Facilities Outside Reactors (revision of ANSI/ANS-8.21-1995; R2019)

Bruce Power, the utility in Ontario, Canada, and health-care company Nordion announced that they are working to increase the production of cobalt-60 to meet increasing world market demands. The companies said they will increase the amount of Co-60 Bruce Power is able to produce in its reactors “by innovating a new adjuster component configuration.”

The Nuclear Regulatory Commission staff has completed its final environmental impact statement (FEIS) for Kairos Power’s application to build the Hermes demonstration reactor in Oak Ridge, Tenn., and is advising that the construction permit (CP) be issued.

“After weighing the environmental, economic, technical, and other benefits against environmental and other costs, and considering reasonable alternatives, the NRC staff recommends, unless safety issues mandate otherwise, that the NRC issue the CP to Kairos,” the FEIS states.

Rasmussen

The plenary sessions held earlier this month in Florida at the 2023 ANS Utility Working Conference were focused on the concept of resilience, the meeting’s theme. The August 9 plenary, which was moderated by UWC general chair Matt Rasmussen, senior vice president of engineering and operations support for the Tennessee Valley Authority, included presentations by Chris Glover, president and chief executive officer of Volkswagen Chattanooga; Petro Kotin, president of Ukraine’s nuclear plant operator Energoatom; and Steve L. Robbins of S. L. Robbins and Associates. The session’s opening remarks were provided by Rep. Byron Donalds (R., Fla.).

It’s been almost 35 years since Illinois last added a nuclear power reactor to the grid (Braidwood-2, a pressurized water reactor operated by Constellation, reached commercial operation in October 1988). And it’s been 63 years since a research reactor reached initial criticality at the University of Illinois–Urbana-Champaign (UIUC). The university’s TRIGA Mark II started up in August 1960 and was shut down in 1998. For about 25 years, UIUC—the flagship public university in a state that generates more power from nuclear energy than any other—has lacked an operating research reactor.

The New Mexico Environment Department (NMED) released the proposed final permit for the Waste Isolation Pilot Plant renewal process on August 15. The NMED also announced a public hybrid meeting scheduled for September 22, where the public will have the opportunity to ask questions about the proposed final permit.

In the newly released 2023 edition of The World Nuclear Supply Chain report, the World Nuclear Association recommends a number of actions to ensure that the international supply chain remains “suitably robust, competitive, and adaptive to meet the anticipated need for long-term operation and new nuclear build.”

The fifth edition of the report provides a market-oriented view that focuses on opportunities and challenges related to nuclear-grade structures, systems, components, and services. Evaluated are supply chain considerations ranging from large-scale reactors to small modular reactors to reactor refurbishment.

Natura Resources of Abilene, Texas, has awarded a contract to Zachry Nuclear Engineering, which has offices in Connecticut and North Carolina, to complete the engineering and design of Natura's 1-MWt molten salt reactor (MSR). The agreement also provides terms under which Zachry may execute the engineering, procurement, and construction phase of the project. The dollar amount of the contract was not disclosed.

Advanced reactors are promising energy systems that can enable the world to transition to a more sustainable energy matrix. These concepts are potentially more fuel efficient and safer, compared with previous generations of nuclear reactors. Many designs, like high-­temperature gas reactors (HTGRs) and molten salt fast reactors (MSFRs), target high outlet temperatures, allowing for their operation in processes where high heating is required, such as for hydrogen production and desalination.

Georgia Power has begun the process of loading fuel into the Vogtle plant’s Unit 4 reactor, the company announced yesterday, marking another pivotal milestone toward commercial operation of the second of the facility’s two new units.

A Nuclear Regulatory Commission draft regulatory guide—DG-8061, “Release of Patients Administered Radioactive Material”—proposes guidance on the release of patients after a medical procedure involving the administration of radiopharmaceuticals or the implantation of a sealed source. The guidance is intended to help licensees interpret NRC regulations designed to protect the people—family, friends, caregivers, or members of the general public—who may be in proximity to a patient who is discharged after receiving nuclear medicine treatment.

Duke Energy has filed an update to its 2022 state-mandated carbon-reduction plan with the public utility commissions of North and South Carolina, proposing the deployment of small modular reactors at the Belews Creek coal plant in Stokes County, N.C., which is slated for retirement next decade. A similar system would be added at a second site yet to be determined for a total of 600 MW of advanced nuclear. (Both the advanced reactor production tax credit and investment tax credit included in last year’s Inflation Reduction Act offer a 10 percent bonus for facilities sited in certain energy communities, including those with retiring coal plants.)

The United States has joined the OECD Nuclear Energy Agency (NEA) Data Bank, a decision that marks “a significant stride in international collaboration for nuclear energy research, safety, and knowledge exchange,” according to the August 16 NEA announcement. “As a country renowned for its scientific and technological excellence, the United States will undoubtedly enrich the Data Bank's repository of data, software, and benchmarks and enhance its role in fostering responsible nuclear development.”

Nuclear thermal hydraulics—for light water reactors or advanced reactors cooled by gas, metal, or salt—is all about defining safety and performance margins as things heat up.

After decades of planning and weeks of preparation and checks, the first batch of legacy waste has been retrieved from the Pile Fuel Cladding Silo at the Sellafield nuclear site in West Cumbria, England. According to Sellafield Ltd., the site license company, a state-of-the-art robotic arm was used to reach into the silo and, for the first time, remove and repackage the waste for longer-term storage.

These retrievals mark a significant achievement in progress toward the cleanup and decommissioning of one of the most hazardous buildings on the site, according to Sellafield Ltd., which made the announcement on August 16.

Watch a video about the Pile Fuel Cladding Silo and Sellafield’s waste retrieval operations here.