People

Hoffman

Nuclear chemist Darleane D. Hoffman, who was renowned for her research on transuranium elements that advanced the understanding of nuclear fission, died on September 4 at her home in Menlo Park, Calif. She was 98.

Iowa origins: Hoffman was born on November 8, 1926, in Terril, Ia. She attended Iowa State University, where she earned a bachelor’s degree in chemistry in 1948 and a doctorate in physical (or nuclear) chemistry in 1951. She then began working as a chemist at Oak Ridge National Laboratory.

Los Alamos research: In 1953, Hoffman began a research position at Los Alamos National Laboratory, where she conducted pioneering work on spontaneous fission. She served as the lab’s first female division leader in charge of the Chemistry and Nuclear Chemistry Division.

Nieh

The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as a commissioner at the Nuclear Regulatory Commission.

Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.

Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.

A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.

One constant at the American Nuclear Society’s national meetings is the recognition of exceptional individuals in the nuclear community. ANS President Hash Hashemian has named this season’s national award recipients. These awards will be presented next month at the upcoming Winter Conference and Expo in Washington, D.C. The recipients of awards from the Society’s professional divisions, alongside Presidential Citations and the Nuclear Historic Landmark Award, will be announced soon.

Kock

Andrea Kock was named director of the Nuclear Regulatory Commission’s Office of Nuclear Materials Safety and Safeguards.

Kock was previously the Region I administrator in King of Prussia, Pa., and had been serving recently as temporary head of the NMSS.

NMSS licenses and regulates the facilities and materials associated with the processing, transport, and handling of nuclear materials, including uranium recovery activities and the fuel used in commercial nuclear reactors. The office also implements the NRC’s Agreement State program; liaises with American Indian tribal governments; and supports agency rulemaking, environmental review, and financial assurance projects.

A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.

When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.

The Nuclear Regulatory Commission recently announced that David Wright, after being nominated by President Trump and confirmed by the Senate, was ceremonially sworn in as NRC chair on September 8.

This swearing in comes more than a month after Wright began his third term on the commission; he began leading as chair July 31. His term will conclude on June 30, 2030.

Rhoades

Mudrick

Longtime nuclear industry executive Chris Mudrick has been named the new chief nuclear officer at Constellation Energy, effective September 29. He will take over the position from Dave Rhoades, who is retiring from the role.

History: Mudrick has been Constellation’s senior vice president of generation growth since December 2024, a position that marked his return to the company after serving as executive vice president and CNO at Bruce Power in Ontario, Canada, for more than four years. Prior to joining Bruce Power, Mudrick was at Constellation/Exelon for more than 32 years, ending his time there as senior vice president of operations–East and chief operating officer. He began his career with the company as a nuclear power plant operator in Pennsylvania in 1987.

Navigation engineer Marina Starovoitova has been named captain of a Russian nuclear-powered icebreaker, state nuclear energy corporation Rosatom has announced. Starovoitova is the first woman to hold that position, Rosatom said. She was officially appointed on August 20 during a ceremony in Nizhny Novgorod that marked the 80th anniversary of Russia’s nuclear energy industry. The evening event, “Era of Dreamers,” was attended by about 30,000 spectators, including more than 20,000 employees of Rosatom.

Brazilian model, nuclear advocate, and philanthropist Isabelle Boemeke, who the online TED lecture series describes as “the world’s first nuclear energy influencer,” was the subject of a recent New York Times article that explored her ardent support for and advocacy of nuclear technology.

...and today.

Levin in the late 1980s...

Growing up in Baltimore in the 1950s and ’60s, I had interests in two areas that ultimately had major impacts on my education and career. The first was science—especially nuclear physics—and the second was science fiction.

One early influence was undoubtedly Disney’s short film “Our Friend the Atom.” I don’t recall exactly when or where I saw it, but I clearly remember the demonstration of a chain reaction with mousetraps and ping pong balls. It looked like an exciting area about which to learn.

I also had a shelf full of Tom Swift Jr. sci-fi/adventure books, and around the fourth grade I discovered Robert Heinlein—specifically, his book Have Space Suit, Will Travel. Kip Russell, the teenage hero of the book, is abducted by hostile space aliens but manages to escape and, with the help of a friendly alien, saves Earth from destruction. At the end, having returned to Earth, Kip prepares to go off to college at MIT. With the assistance of my trusty World Book Encyclopedia, I researched MIT and decided—rather audaciously at the age of 10—that I would go there, too.

Nieh

President Trump recently nominated Ho Nieh for the role of commissioner at the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.

Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.

Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.

From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.

Kasper

Hayes

The American Nuclear Society has officially selected two of its members to serve as its 2026 Glenn T. Seaborg Congressional Science and Engineering Fellows. Alyssa Hayes and Benjamin Kasper will help the Society fulfill its strategic goal of enhancing nuclear policy by working in the halls of Congress, either in a congressional member’s personal office or with a committee, starting next January.

“The Congressional Fellowship program has put ANS in a unique position to provide significant technical assistance to Congress on nuclear science, energy, and technology, with great results,” said Congressional Fellowship Special Committee chair Harsh Desai, himself a former Congressional Fellow. “This once-in-a-lifetime professional development opportunity will allow them to learn the art of policymaking and potentially pursue it as part of their careers beyond the fellowship.”

Christensen

Woosley

Mike Woosley and Jacob Christensen, the 2025 recipients of the American Nuclear Society’s Glenn T. Seaborg Congressional Science and Engineering Fellowship, are now more than halfway through their stints on the Hill. Their fellowships will draw to a close in December.

To update the Society on what they have accomplished in Washington, D.C., so far, Woosley and Christensen recently gave Nuclear News a midterm update on which offices they ended up in and what they hope to do with their remaining time in the Capitol.

Munn

Nuclear engineer and longtime ANS member Wanda Munn died on July 23 at the age of 93. Described as a “trailblazer for women [and] an outspoken advocate for the peaceful use of nuclear technology” in her Tri-City (Wash.) Herald obituary, Munn followed a unique path to her nuclear engineering career. She did not get her degree until she was 46, and she subsequently spent 18 years working on systems design, construction, and operation of the Fast Flux Test Facility (FFTF) reactor for Westinghouse at the Hanford nuclear site in eastern Washington state.

Nontraditional student: Munn was born in 1931. She graduated high school early, at age 16, and started to pursue a medical degree. However, those plans changed when she married at age 18. By her early 40s, she was divorced and working as a secretary in a university nuclear engineering department when she decided to return to school to get a nuclear engineering degree.

Five of ANS’s past Congressional Fellows recently shared their unique experiences on Capitol Hill and gave insights into how they were able to have an impact on federal policy related to nuclear, exploring what they learned about the policymaking process and how ANS can continue having an impact in Washington.

Brown

The nuclear community is mourning the loss of Gilbert Brown, who passed away on July 11 at the age of 77 following a battle with cancer.

Brown, an American Nuclear Society Fellow and an ANS member for nearly 50 years, joined the faculty at Lowell Technological Institute—now the University of Massachusetts–Lowell—in 1973 and remained there for the rest of his career. He eventually became director of the UMass Lowell nuclear engineering program. After his retirement, he remained an emeritus professor at the university.

Sukesh Aghara, chair of the Nuclear Engineering Department Heads Organization, noted in an email to NEDHO members and others that “Gil was a relentless advocate for nuclear energy and a deeply respected member of our professional community. He was also a kind and generous friend—and one of the reasons I ended up at UMass Lowell. He served the university with great dedication. . . . Within NEDHO, Gil was a steady presence and served for many years as our treasurer. His contributions to nuclear engineering education and to this community will be dearly missed.”

As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.

A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.

Washington, D.C. — The American Nuclear Society (ANS) issued the following statement:

"We commend Commissioner Christopher Hanson for his service and leadership at the U.S. Nuclear Regulatory Commission. He served honorably as both a commissioner and chair."

One of the privileges of being president of the American Nuclear Society is awarding Presidential Citations to individuals who have demonstrated outstanding effort in some manner for the benefit of ANS or the nuclear community at large. Citations are conferred twice each year, at the Annual and Winter Meetings.

ANS President Lisa Marshall has named this season’s recipients, who will receive recognition at the upcoming Annual Conference in Chicago during the Special Session on Tuesday, June 17.

. . . and today.

Steve Rae in 1980 . . .

There I was at the promising age of 16 years old in 1973, standing before an audience of about 100 adults in Goldsboro, N.C., explaining what BWRs, breeder reactors, and PWRs were. The Goldsboro High Advanced Chemistry class teacher, Dr. Joseph Mitchener, had introduced his class of eight students to the topic of nuclear energy. I found the topic fascinating. So, when Dr. Mitchener looked for class volunteers to make public presentations like to the Goldsboro audience, I grabbed the topic of nuclear energy and ran with it. Little did I know that one action would lead to my future career.

Next up was North Carolina State University, starting in 1975, where seven out of the eight students from Dr. Mitchener’s class matriculated to the Wolfpack College of Engineering. There, I focused my interest on utility energy systems including nuclear energy.