Features

Last year in late August, 120 storage cylinders of depleted uranium oxide (DUOx) safely arrived by rail in West Texas, having been shipped from the Department of Energy’s Portsmouth Site in Ohio. It was the first such shipment of the stable crystalline powder from the Portsmouth Site and was another milestone in the DOE Office of Environmental Management’s (EM) efforts to ship DUOx for off-site disposal.

Systems for Nuclear Auxiliary Power (SNAP) was an Atomic Energy Commission program with the goal of producing a portable and dependable power source centered around nuclear technology that could be utilized in land, sea, and space applications. The program aimed to provide a compact reactor—a necessity for space applications—and ran from 1955 until 1973, when it was discontinued.

Charles Harper (seated) with son Jeff (right) and grandson Phillip (left). (Photo: Otis Waters)

Charles L. Harper understands disadvantage. It was his personal drive and love for learning that pushed him to leave inner-city Detroit, join the U.S. Navy, earn degrees in psychology from Wayne State University and the University of Detroit, and enjoy a successful career as a clinical psychologist. He served as a strong role model for his son Jeffrey, who is an entrepreneur and international energy executive.

The Harper men have many things in common. According to Jeffrey, “Both my dad and I share a common self-motivation and a love for learning, but the most critical thing we share is the continual quest for opportunity, which led us both to moments of predestination that changed our lives.” And now, in honor of his father, the younger Harper has used these qualities to found Charles Harper Charities (CHC) with the aim of introducing disadvantaged youth to the world of nuclear engineering.

One CHC offering helps rising high school seniors attend a summer program to prepare them for college and introduce them to nuclear engineering. This summer’s Nuclear Engineering Opportunity Program, which will be CHC’s inaugural course, will be held at the University of Michigan in conjunction with the Department of Nuclear Engineering and Radiological Sciences (NERS) and the College of Engineering’s Office of Culture, Community, and Equity. The monthlong residential course will host rising seniors from Detroit at no cost to them and will introduce them to STEM subjects and provide tours of nearby nuclear facilities.

As the world shifts toward clean and sustainable energy, Kazakhstan stands on the cusp of a significant move into nuclear energy. Kazakh president Kassym-Jomart Tokayev has suggested a national referendum to gauge the country’s position on building a nuclear power plant, setting the stage for an in-depth discussion about the nation’s energy trajectory.

Craig Piercy
cpiercy@ans.org

The U.S. Nuclear Regulatory Commission’s Regulatory Information Conference—“the RIC” as it’s commonly known—is an annual rite of spring for many nuclear energy professionals. Each year, 2,000 industry people crowd into the Montgomery County Conference Center to hear the commissioners give their annual plenary speeches, attend technical sessions on regulatory topics, and kibitz with friends in the expansive foyer during breaks.

And as always, there are two distinct conversations at the RIC: the one that emanates from the stage, and the other that unfurls organically in the hallways. The official conversation is in the public record for anyone to read or watch. The hallway topic du jour this year was Part 53 of Title 10 of the Code of Federal Regulations, of course—specifically, the Staff Requirements Memo (SRM) handed down by the commission the week before that instructed staff to produce a new proposed rule for public comment and set a six-month countdown clock to finish it.

Ken Petersen
president@ans.org

Nuclear has been on a good roll lately and it is getting better. The 2022 Inflation Reduction Act (IRA) provides a nuclear power production tax credit. This has stopped the early retirement of deregulated units. The IRA also provides a benefit for the clean production of hydrogen. Many utilities have committed to a net-zero goal by 2050. Duke and other utilities have plans to transition coal plants to nuclear with small modular reactors.

And now, nuclear has a new supporter—tech companies.

The big U.S. utility companies (like Exelon, Duke, Dominion, Southern, and Entergy) are all projecting growth in electricity demand—primarily in the commercial sector but some residential growth is also expected. Commercial growth is being driven by new factories (thank you, IRA and CHIPS, that is, the Creating Helpful Incentives to Produce Semiconductors and Science Act). It is also being driven by data centers.

We welcome ANS members who have careered in the community to submit their own Nuclear Legacy stories, so that the personal history of nuclear power can be captured. For information on submitting your stories, contact nucnews@ans.org.

The James Wm. Behrens family legacy in America starts with Henry H. Behrens, who came across the pond from Germany in 1857. He was later joined by Wilhelmina, also from Germany, and they were married in Alton, Ill., in about 1862. One of their sons, George Wm. Sr., was my grandfather. He and his wife, Frances Walker (of Irish and English descent), had three sons, one of whom (George Wm. Jr.) was my father. I was born in 1947 and raised in the small country town of Bunker Hill, Ill. I attended Bunker Hill elementary and high schools, graduating from the latter in 1965.

The spent fuel pool at TVA’s Watts Bar nuclear power plant near Spring City, Tenn. (Photo: TVA)

Neutron absorber materials are used by nuclear power plants to maintain criticality safety margins in their spent nuclear fuel pools. These materials are typically in the form of fixed panels of a neutron-absorbing composite material that is placed within the fuel pools. (A comprehensive review of such materials used in wet storage pools and dry storage has been provided by the Electric Power Research Institute (EPRI) [1]).

With increasing plant life, there is a need to maintain or establish a monitoring program for neutron absorber materials—if one is not already in place—as part of aging management plans for reactor spent fuel pools.

Such monitoring programs are necessary to verify that the neutron absorbers continue to provide the criticality safety margins relied upon in the criticality analyses of a reactor’s spent fuel pool. To do this, the monitoring program must be capable of identifying any changes to the material and quantifying those changes. It should be noted that not all the changes (for example minor pitting and blistering of the absorber material) will result in statistically or operationally significant impact on the criticality safety margins.

For monitoring neutron absorber materials in spent fuel pools, until recently, two alternatives existed—coupon testing and in situ measurements. A third option, called industry-wide learning aging management program (i-LAMP), was proposed by EPRI and is currently in the final stages of the regulatory review. The following sections describe these monitoring approaches.

Aleshia Duncan

Data from the African Development Bank shows that Africans have an electricity access rate of 40 percent—the lowest in the world. This statistic is one I have been hoping to bring more awareness to and positively impact. Since stepping into my role at the Department of Energy’s Office of Nuclear Energy, I have prioritized focusing on Africa, leveraging the opportunity to deepen existing relationships and forge new ones.

Developments in advanced reactor technology are opening the door to all nations and promise to be critical to attaining climate and energy security goals. As we engage various countries on the African continent regarding their desire to pursue nuclear as an important part of their energy mix, Ghana has emerged as a nation that offers a unique partner profile that is aligned with our mission to support emerging markets and build regional leaders while also being motivated by its own sense of urgency in deploying new nuclear.

The development of nuclear power is one of the pillars of Poland’s energy transition, which involves construction of safe and modern Generation III+ pressurized water reactors.

Polskie Elektrownie Ja˛drowe (PEJ) is the company responsible for, among other things, preparing the investment process for the construction of the first Polish nuclear power plant with a capacity of up to 3,750 MWe. PEJ’s goal is to build six nuclear reactors (for a total capacity of 6–9 GWe), securing 25 percent of the electricity needed in Poland by 2043 and guaranteeing a stable supply of clean energy to millions of homes across the country.

The revitalization of nuclear energy policy in Japan began on August 24, 2022, with Prime Minister Kishida’s address at the second Green Transformation (GX) Executive Meeting. He said, “It is urgent to resolve the present deadlock in energy policy; in order to overcome the current crisis in power supply and demand . . . we will take all possible measures to prepare for unforeseen circumstances. In particular, regarding nuclear power plants (NPPs), the government will take all possible measures to restart the suspended NPPs already licensed for operation.” Kishida emphasized that nuclear power is an indispensable decarbonized energy source for the advancement of the green transformation. The cabinet in February 2023 approved the Basic Policy for the Realization of GX (hereinafter referred to as the GX Basic Policy).

After decades of false starts, U-turns, and stasis, the United States has arrived at a de facto solution for its high-level nuclear waste: Leave it in storage where it was produced, no matter how many tens of billions of dollars it costs, what impediments it raises for nuclear expansion, or what burdens it creates for the reuse of old reactor sites.

Dumb as it sounds, this is keeping all the major players happy. And it avoids alternative pathways, each of which has problems.

The NEDHO Diversity Panel featured, from left, University of Michigan professor John Foster; Jeffrey Harper, then a vice president at X-energy; William D. Magwood, director general of the NEA; and Londrea Garrett, a Ph.D. student at UM. (Photo: Aditi Verma/University of Michigan)

The Nuclear Engineering Department Heads Organization (NEDHO) has been sponsoring Diversity Panels since October 2022, when the inaugural meeting was hosted by the University of Tennessee Department of Nuclear Engineering. The panels were established as a distinguished speaker series by a working group led by Wes Hines, head of the UT Department of Nuclear Engineering, and Todd Allen, a former NEDHO chair and the current chair of the Department of Nuclear Engineering and Radiological Sciences (NERS) at the University of Michigan.

Allen explained that the panels are meant to be “a first step toward improving the diversity of the talent entering the nuclear science and engineering fields.” The idea came from a presentation by Andreas Enqvist, director of the nuclear engineering program at the University of Florida, at the November 2021 NEDHO meeting. According to Allen, Enqvist described “ASEE [American Society for Engineering Education] data on how poorly the nuclear engineering field was doing at getting black students to study nuclear at the B.S. level and, even worse, how few moved from B.S. to graduate programs.”

The year 2024 is shaping up to be a historic one for Posiva, the waste management organization owned by Finland’s two nuclear power plant utilities, Fortum and Teollisuuden Voima. The company is looking to receive regulatory approval of its operating license for the Onkalo deep geological repository for high-level radioactive waste by the end of the year.

Rep. Brandon Williams

Rep. Byron Donalds

For many Americans, the word “radiation” is often associated with fear of the unknown, yet the medical and scientific reality is that radiation is ever present in nature and is beneficial to human life. The truth behind radiation historically has been distorted and stigmatized—even the U.S. Nuclear Regulatory Commission recognizes that “radiation is naturally present in our environment, as it has been since before the birth of this planet.”

To embrace a responsible, low-carbon energy future, the American public should be aware of the beneficial applications of radiation instead of fearing it due to unsubstantiated hysteria generated by opponents of responsible nuclear energy.

In February 1957, construction was completed on the Sodium Reactor Experiment (SRE), a sodium-cooled, graphite-moderated reactor with an output of 20 MWt. The design of theSRE had begun three years earlier in 1954, and construction started in April 1955. On April 25, 1957, the reactor reached criticality, and the SRE operated until February 1964.

America, Japan, and China are racing to be the first nation to make nuclear energy completely renewable. The hurdle is making it economical to extract uranium from seawater, because the amount of uranium in seawater is truly inexhaustible.

While America had been in the lead with technological breakthroughs from the Department of Energy’s Pacific Northwest and Oak Ridge National Laboratories, researchers at Northeast Normal University in China have sprung ahead. But these breakthroughs from both countries have brought the removal of uranium from seawater within economic reach. The only question is when will the source of uranium for our nuclear power plants change from mined ore to sea­water extraction?

On August 2, 1946, 1 millicurie of the isotope carbon-14 left Oak Ridge National Laboratory, bound for the Barnard Free Skin and Cancer Hospital in St. Louis, Mo.

That tiny amount of the radioisotope was purchased by the hospital for use in cancer studies. And it heralded a new peacetime mission for ORNL, built just a few years earlier for the production of plutonium from uranium for the Manhattan Project.

The roles of nuclear energy as a clean energy source and in space exploration were highlighted at the recent Atoms for Humanity symposium, held October 25–26, 2023. The symposium, which was organized by Purdue’s Center for Intelligent Energy Systems (CiENS) and hosted by the university’s School of Nuclear Engineering, was held on the West Lafayette, Ind., campus in Eliza Fowler Hall.

The American Nuclear Society President’s Special Committee on Certification is making progress toward launching a nuclear certification program later this year. The program outlined to the ANS Board of Directors in 2023 is being designed to help establish industry standards and bridge workforce gaps in the nuclear sector to address the growing demand for qualified professionals in the nuclear industry.