Siegfried S. Hecker, Plutonium
and Nuclear Nonproliferation

Resources with Additional Information · Awards

Siegfried S. Hecker
Photo Credit: Courtesy of
Los Alamos National Laboratory
LeRoy Sanchez

On September 17, 2009, U.S. Energy Secretary Steven Chu named Siegfried S. Hecker as a winner of the Enrico Fermi Award 'in recognition for his contributions to plutonium metallurgy, his broad scientific leadership and for his energetic and continuing efforts to reduce the danger of nuclear weapons around the globe. Dr. Hecker is credited with resolving a long-standing controversy involving the stability of certain structures (or phases) in plutonium alloys near equilibrium that arose from significant discrepancies between U.S. and former USSR research on plutonium metallurgy.'1

Dr. Hecker, 'a prominent U.S. expert on nuclear technology and policy, was appointed co-director of the Center for International Security and Cooperation, in the Freeman Spogli Institute [FSI] for International Studies at Stanford University on Jan. 16 [2007]. He also assumed positions as a professor (research) in the Stanford School of Engineering's Department of Management Science and Engineering and a senior fellow at FSI. …

An emeritus director of Los Alamos National Laboratory, Hecker has fostered U.S. cooperation with Russian nuclear laboratories for 15 years to secure the vast stockpile of former Soviet nuclear weapons and materials. At CISAC, where he has been a visiting professor since fall 2005, Hecker has contributed to international projects to prevent the spread of nuclear weapons and secure materials for making them.'2


Resources with Additional Information

Additional information about Siegfried Hecker, plutonium, and nuclear nonproliferation is available in electronic documents and on the Web.


The Role of the DOE Weapons Laboratories in a Changing National Security Environment: CNSS Papers No. 8, April 1988, DOE Technical Report, April 1988

The Cold War is Over. What Now?, DOE Technical Report, April, 1995

6th US-Russian Pu Science Workshop Lawrence Livermore National Laboratory University of California, Livermore, California, July 14 and 15, 2006, DOE Technical Report, June 2006


Los Alamos Science No. 26, 2000
Plutonium: A Historical Overview
A Factor of Millions-Why We Made Plutonium
Plutonium in Use-From Single Atoms to Multiton Amounts
Plutonium-An Element at Odds with Itself
The Plutonium Challenge-Stockpile Stewardship
The Plutonium Challenge-Avoiding Nuclear Weapons Proliferation
The Plutonium Challenge-Environmental Issues
Aging of Plutonium and Its Alloys
A Tale of Two Diagrams
Plutonium and Its Alloys-From Atoms to Microstructure
Mechanical Behavior of Plutonium and Its Alloy

Additional Web Pages:

Director, Los Alamos National Laboratory (LANL) 1985 - 1977

Siegfried S. Hecker, Co-Director of CISAC and Professor at Stanford University

Siegfried S. Hecker Hearing of the United States Senate Committee on Appropriations Subcommittee on Energy and Water Development; April 30, 2008

The Risks of North Korea's Nuclear Restart; May 12, 2009

Siegfried Hecker on Recent Nuclear and Missile Tests by North Korea; May 27, 2009



2009 Fermi Award

1984 Ernest Orlando Lawrence Award

2004 Seaborg Medal


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