The Department of Nuclear Engineering was established in 1958 by then Chancellor Glenn Seaborg. In line with our history and thanks to our exceptional students and outstanding faculty, Berkeley NE is one of the premier Nuclear Science and Engineering departments in the Nation, and the only one in California. We educate and train the current and next generation of engineers, scientists and thought leaders with proficiency in nuclear science and engineering. Our facilities and capabilities enable fundamental discoveries and transformative advances to meet worldwide societal needs in energy, health and security challenges.

Among the strengths of the Department are the close ties with the national laboratories (in particularly the nearby Lawrence Berkeley National LaboratoryLawrence Livermore National Laboratory and Los Alamos National Laboratory), the nuclear industry (like Kairos Power) and other academic institutions (such as the Department of Radiation Oncology at UCSF).

Our students and alumni are trailblazers in nuclear energy, security, nuclear physics, nuclear chemistry, medical physics and more.

What is Nuclear Engineering?

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Energy

With its ability to generate massive amounts of clean, reliable energy from tiny fuel sources, nuclear power is a game-changer in the fight against climate change, offering a thrilling path to a sustainable, carbon-free future.

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Science and Health

Nuclear science explores atomic nuclei and their reactions. Its applications power nuclear reactors, enable medical imaging and cancer treatments, improve industrial processes, and drive scientific breakthroughs in fields like physics and space exploration.

Photo Credit to Thor Swift/Berkeley Lab.

Photomultiplier tubes, used to detect faint sources of light, mounted inside the steel tank of the Eos detector.

Security

Nuclear security is the mission to protect nuclear materials and technology, ensuring the safe, controlled use of these materials for global peace and safety.

Department History

Founding of UC Berkeley’s Department of Nuclear Engineering

August 24, 1958

Chancellor Glenn Seaborg founded the Nuclear Engineering Department at Berkeley. The faculty that year consisted of Professors Lawrence Grossman, Virgil Shrok, Paul Chambre, and Nathan Snyder.

Thomas H. Pigford

August 1, 1959

Professor Thomas H. Pigford is appointed the department’s first chair in 1959. He served as department chair from 1959-1964, from 1974-1979, and from 1984-1988. Under Thomas Pigford’s guidance, the nuclear engineering faculty grew in number. Additionally, the PhD programs, lab facilities and experimental facilities all expanded. Student enrollment rises to more than 90 graduate students.

US Nuclear Regulatory Commission seal

Thomas Pigford served on Atomic Safety and Licensing Board

March 20, 1963

Glenn Seaborg, new chair of the Atomic Energy Commission, appoints Thomas Pigford to serve on Atomic Safety and Licensing Board.

US Nuclear Regulatory Commission seal

Hans M. Mark

August 1, 1964

Professor Hans M. Mark served as department chair from 1964-1969.

TRIGA Reactor Becomes Operational

August 10, 1966

The TRIGA reactor contract had been negotiated by a committee, including Lawrence Ruby, since 1963. It achieved a sustained nuclear chain in 1966.

Studies Initiated of Radioactive Material Transport

July 25, 1977

Paul Chambre, Thomas Pigford, and Visiting Professor Kunio Higashi initiate studies of radioactive material transport through geologic media for time spans of hundreds of thousands of years. Their theoretical techniques are used in the design of geological repositories in several countries.

Donald R. Olander

August 1, 1980

Professor Donald Olander served as department chair from 1980-1984.

Final Run of Berkeley’s TRIGA Mark III Reactor

December 23, 1987

On this day at 9:41 AM, professors performed the last run of Berkeley’s TRIGA Mark III reactor.

T. Kenneth Fowler

August 1, 1988

Professor T. Kenneth Fowler served as department chair from 1988-1994.

Passive Safety Systems for Light Water Reactors

January 1, 1990

Per Peterson and Virgil Schrok developed passive safety systems for Light Water Reactors, a new generation of plants that operate by gravity-driven processes.

Radionuclide Analysis

March 1, 1990

Joonhong Ahn’s analysis of how radionuclides, such as plutonium and neptunium, behave and migrate through geologic formations over long periods is key to understanding the safety of repositories for spent fuel and high-level wastes.

GTRAN2

January 1, 1994

Professor Jasmina Vujic, the first woman to join and later chair a top US university’s nuclear engineering department, designs and patents GTRAN2. This stands for General Geometry Transport Theory Code in Two dimensions, and is a new way to mathematically model neutron transport behavior inside a reactor core in complex geometries. GTRAN3 is completed one year later.

William E. Kastenberg

August 1, 1995

Professor William E. Kastenberg served as department chair from 1995-2000.

Advanced Fuel Cycles for Gen-IV Reactors

January 1, 2000

Professor Ehud Greenspan develops advanced fuel cycles for Generation-IV reactors using spent fuel to consume long-lived isotopes in nuclear wastes.

William E. Kastenberg

August 1, 2000

Professor Per Peterson served as department chair from 2000-2005, and again from 2010-2011.

Jasmina Vujic

August 1, 2005

Professor Jasmina Vujic served as department chair from 2005-2009.

Stacks of shipping containers

DoNuTS Finds Funding

January 1, 2007

The National Science Foundation (NSF) and the Department of Homeland Security fund the DoNuTS (Domestic Nuclear Threat Security) project. This project, led by Professor Edward Morse, is developing new technology for detecting special nuclear material in cargo containers.

Stacks of shipping containers

Blue Ribbon Commission

January 1, 2010

Professor Per Peterson is appointed to President Barack Obama’s Blue Ribbon Commission on America’s Nuclear Future, a committee established to develop a comprehensive strategy on nuclear waste.

Karl van Bibber

August 1, 2012

Professor Karl van Bibber served as department chair from 2012-2018.

Berkeley Rad Watch Team

April 1, 2014

Berkeley’s Radwatch Team led by Professor Kai Vetter, launches its air-monitoring system, which allows for nearly real-time viewing of natural airborne radioactivity. This first-of-its-kind system is aimed at helping the general public better understand background radiation.

Peter Hosemann Headshot

Peter Hosemann

August 1, 2018

Professor Peter Hosemann served as department chair from 2018-2022.

Peter Hosemann Headshot
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Massimiliano Fratoni

August 1, 2022

Professor Massimiliano Fratoni serves as department chair, since 2022.

Max Fratoni headshot