Nuclear Engineering Division

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Reactors designed by Argonne National Laboratory

Organization: Program Managers

Dr. John G. Stevens

Dr. John G. StevensDr. John G. Stevens

Program Manager
Reactor Material Management
Nuclear Engineering Division

Dr. John G. Stevens is a Principal Nuclear Engineer and Department Manager of Research and Test Reactors in the Nuclear Engineering Division. He is a reactor physicist with over 30 years of engineering experience. Dr. Stevens currently has the role of International Reactor Conversion Technical Lead within the NNSA Material Management & Minimization Reactor Conversion Program.  Prior to the broad leadership role, Dr. Stevens served as Reactor Conversion Technical Lead for the U.S. High Performance Research Reactor (USHPRR) and European High Flux Reactor (EUHFR) conversion programs.  The multi-laboratory USHPRR effort is focused upon converting the five remaining HEU fueled research reactors in the U.S. (MITR, MURR, NBSR, ATR and HFIR).  The multinational EUHFR collaboration is focused upon conversion of the Belgian BR2, French RHF, French JHR, and German FRM-II reactors.

Dr. Stevens is a Purdue Engineer, having completed his Ph.D. as a Department of Energy Fellow in 1995.  He commercialized his nuclear optimization dissertation work to save fuel and millions of dollars for customers in Sweden, the U.S., and Taiwan.  Prior to joining Argonne in 2005, he worked for the leading international nuclear power software firm Studsvik Scandpower, Inc.  As a student, John worked for Westinghouse Nuclear Fuels Division and for the French Center for Nuclear Studies at Cadarache.

Dr. Stevens has been a member of the American Nuclear Society since 1985, active in a variety of roles at the local and national level over the years.  He has been a member of the Institute for Operations Research and the Management Sciences (INFORMS) since 1995.


Video: Nuclear Nonproliferation

Nuclear engineer John Stevens discusses how Argonne’s nonproliferation efforts are helping the nation to detect and prevent the misuse of nuclear materials across the world. 

In the Press

Into Kazakhstan to Convert a Reactor
The world is dotted with research reactors that run on highly enriched uranium. Argonne engineers are traveling the world to convert them one by one.
-- Argonne Now (Mar. 31, 2017)

Argonne, NNSA collaborate with China to convert micro-reactor
China commenced operations on a small research reactor that was converted to use low-enriched uranium (LEU) fuel in partnership with the National Nuclear Security Administration (NNSA) and Argonne, the first conversion of its kind.
-- Argonne Press Release (Apr. 22, 2016)

Argonne engineers honored for Iran nuclear deal support
A group of Argonne nuclear engineers recently received the U.S. Department of Energy (DOE) Secretarial Honor Award for their work supporting the Iran nuclear negotiations.
-- ArgonneToday (Oct. 12, 2016)

Argonne, China sign agreement to develop Zero Power Test Facility
Argonne National Laboratory (ANL) and the China Institute of Atomic Energy (CIAE) have signed an agreement to develop a Zero Power Test Facility (ZPTF) at the CIAE that will be used in the ongoing Global Threat Reduction Initiative – Conversion Program.
-- Nuclear Engineering Division Highlights (Oct. 28, 2010)

Last Modified: Fri, September 22, 2017 1:24 PM



Research and Test Reactor Department

The Reduced Enrichment for Research and Test Reactors (RERTR) Program develops technology necessary to enable the conversion of civilian facilities using high enriched uranium (HEU) to low enriched uranium (LEU) fuels and targets...
Research and Test Reactor Department

Fact Sheets

Download the Research and Test Reactor FACT SHEET
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For more information:

Reactor Material Management
Program Manager: Dr. John Stevens
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J. Stevens' Executive Bio