Below the layers of Yucca Mountain
A retired USGS geologist shares his experience of working on the publicly misunderstood nuclear waste repository and its geology.

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Optimizing Maintenance Strategies in Power Generation: Embracing Predictive and Preventive Approaches
A retired USGS geologist shares his experience of working on the publicly misunderstood nuclear waste repository and its geology.
Starkey
ANS government relations director John Starkey was a recent guest on the podcast The New Republican. Starkey discussed a range of topics with podcast host Lincoln Wallis in the 30-minute episode, “All Things Nuclear.”
“In 2020, nuclear energy became the second-largest source of electricity in the United States,” Starkey said in response to Wallis’s first question, adding, “That would entail nearly 20 percent of electric generation in the U.S. Nuclear energy has also operated at 90 percent capacity rate for the past 20 years or so. No other source of electricity can touch those [capacity] numbers.… I really see [nuclear energy] being a leader in decarbonization in the country and the world.”
A project to passively remove nonradioactive contaminants from the soil and groundwater at the Department of Energy’s Savannah River Site in South Carolina is coming to an end, as workers prepare to remove solar-power “plugs” from 19 soil remediation locations at the site.
How the Nuclear Regulatory Commission collects information in the licensing of spent nuclear fuel can be improved by a better understanding of the concept of risk-informed decision making, according to a report, Audit of the NRC’s Use of Requests for Additional Information in Licensing Processes for Spent Nuclear Fuel (OIG-21-A-08), by the agency’s Office of Inspector General (OIG).
The Department of Energy’s Office of Environmental Management (EM) has released its Strategic Vision 2021-2031 (hereinafter referred to as the 2021 Strategic Vision), a blueprint to the cleanup program’s anticipated accomplishments over the next decade. The new strategic vision updates EM’s previous report, A Time of Transition and Transformation: EM Vision 2020-2030, released in March of last year.
The Department of Energy’s Office of Nuclear Energy is spreading the word about plans to build a tiny microreactor called the Microreactor Applications Research Validation & EvaLuation (MARVEL) project inside Idaho National Laboratory’s Transient Reactor Test (TREAT) Facility and have it in operation within the next three years. INL recently released a video that describes how MARVEL could help researchers and industry partners test, develop, and demonstrate the integration of a microreactor’s heat and electricity output with other technologies.
The future of nuclear technology is bright and affords ample opportunities for today’s students to make an impact. That was the message given by the three plenary panelists on Saturday, April 10, during the final day of the 2021 ANS Virtual Student Conference. The three-day event was hosted by North Carolina State University and had nearly 500 registered attendees.
Registered attendees can view the entire session on demand.
While scientists can tag migrating birds, mammals, and other animals to track their movements, the precise migration patterns of butterflies and other insects too small for tagging evaded scientists’ scrutiny for decades. That changed in 1996, when Leonard Wassenaar and Keith Hobson, working at the time as isotope scientists for Environment Canada, demonstrated that isotopic techniques could be used to determine the origin of individual monarch butterflies and deduce the species’ annual migration routes. Now, the same technique is being used to study other butterfly species.
Comparing matter to a “lush tapestry, woven from a complex assortment of threads,” physics writer Emily Conover traces the evolution of our understanding of the atom over the past century in the recent Science News article, “How matter’s hidden complexity unleashed the power of nuclear physics.” Conover uncovers how our vision of matter changed from that of a “no-nonsense plaid” to one of an “ornate brocade,” ultimately transforming nuclear physics from an arcane academic pursuit to something that forever changed the world.
The Department of Energy on April 9 announced more than $5 million in scholarships and fellowships for students pursuing degrees in nuclear energy and engineering in the United States. Included in the funding are 50 undergraduate scholarships and 31 graduate fellowships for students at 36 colleges and universities in 23 states—from Boise State to Virginia Tech. (The full list of schools is available online.)
With a blunt but indisputably accurate headline, an article from yesterday’s New York Times on the imminent closure of Indian Point makes it immediately clear what will happen when Unit 3, the nuclear plant’s last operating reactor, is shut down at the end of this month: The state of New York will be forced to rely more heavily on fossil fuels for electricity generation.
Following the retirement of Indian Point-2 last April, the share of New York’s power coming from gas-fired plants rose to about 40 percent, from about 36 percent in 2019, the piece notes, adding that the share from renewables moved up only slightly, to about 30 percent.
Christine King is director of the DOE’s GAIN
The possibilities of new advanced nuclear for the future are undeniably exciting. For me, nuclear energy has provided a career filled with lifelong learning and a global community interested in collaboration. Not every industry is fortunate in this regard. As I look to this exciting future of nuclear, I keep coming back to this advice: “Begin with the end in mind.”
In November 2015, the Department of Energy established the Gateway for Accelerated Innovation in Nuclear (GAIN) for just that purpose. At GAIN, we get up every day to imagine what nuclear could be and identify concrete actions we can take to turn vision into reality. No doubt we have a long way to go, but a lot has changed in the short period of time since GAIN’s inception. Today, we are designing demonstration units to build within this decade. Soon, we will be commercializing and deploying these technologies.
The Nuclear Regulatory Commission is considering changes to its rules governing the transportation of radioactive materials, having received and docketed a petition for rulemaking from the Tribal Radioactive Materials Transportation Committee (TRMTC) asking that the agency revise its regulations on when tribal governments are provided advance notification of such shipments.
As announced in the April 9 Federal Register, the NRC is examining the issues raised in the petition to determine whether they should be considered in rulemaking. The NRC is also requesting public comments on the rulemaking petition, to be submitted by June 23.
The Japanese government will soon announce the decision to dispose of stockpiled Fukushima wastewater into the Pacific Ocean, according to an AP News story published last Friday. The decision is years in the making and follows the guidelines from a panel of government-appointed experts named the Subcommittee on Handling of the ALPS-Treated Water (ALPS Subcommittee).
TAE Technologies has announced that it has produced a stable plasma of over 50 million degrees celsius inside a fusion device using a beam-driven, field-reversed configuration. “By generating such stable high-temperature plasmas, TAE has now validated that the company’s unique approach can scale to the conditions necessary for an economically viable commercial fusion power plant by the end of the decade,” the company declared in its April 8 press release. The company added that the results indicate the design’s linear configuration improves plasma confinement as temperatures rise.
Moran
Coons
Sens. Chris Coons (D., Del.) and Jerry Moran (R., Kan.) late last month reintroduced legislation to give investors in clean energy projects, including advanced nuclear, access to a tax advantage currently available only to fossil fuel investors. The bipartisan bill, the Financing Our Energy Future Act (H.B. 1034), was initially introduced in June 2019.
The measure would enable clean energy companies to form master limited partnerships (MLPs)—business ventures that combine the tax benefits of private partnerships (where profits are taxed only when investors receive distributions) with the liquidity of publicly traded companies. By statute, MLPs are currently available only to investors in energy portfolios for oil, natural gas, coal extraction, and pipeline projects.
The second day of the 2021 ANS Virtual Student Conference, on April 9, hosted by North Carolina State University opened with the plenary, “Student Opportunities within the Nuclear Community.” The session featured three panelists, each representing a different sector of the nuclear community.
A research collaboration between Lawrence Livermore National Laboratory and the Air Force Institute of Technology (AFIT) has investigated how the neutron energy generated by the detonation of a nuclear device could affect the path and speed of an asteroid on a collision course with Earth by melting and vaporizing a portion of the asteroid. The research, which compared the deflection caused by two different neutron energies—14.1 MeV and 1 MeV, representing fusion and fission neutrons, respectively—is described in an article published by LLNL on April 8.
Workers at the Department of Energy’s Savannah River Site in South Carolina recently finished transferring equipment to the site’s K Area in preparation of shipping downblended plutonium to the Waste Isolation Pilot Plant in New Mexico for disposal. The plutonium is part of the 34 metric tons of surplus plutonium the National Nuclear Security Administration plans to ship to WIPP under the “dilute and dispose” option the department adopted following the cancellation of the MOX Fuel Fabrication Facility project.
North Carolina State University was finally able to host the ANS Student Conference, April 8 to 10. After the 2020 event was canceled due to the global coronavirus pandemic, the 2021 version is being held virtually for the first time.
The conference's opening session is available for registered attendees to view online.