Peter S. Winokur, Chairman
Dr. Peter S. Winokur of Maryland has been appointed a Member of the Defense Nuclear Facilities Safety Board for a term expiring October 18, 2014. Dr. Winokur has more than 40 years of experience as a scientist and engineer in the field of radiation effects science, technology, and hardness assurance in support of military and space systems. A Fellow of the Institute of Electrical and Electronic Engineers and the American Physical Society, he was selected as one of the most highly cited researchers in Engineering by the Institute for Scientific Information, which lists the 250 most highly cited researchers in the world in given scientific fields.
Jessie Hill Roberson, Vice Chairman
On March 19, 2010, Ms. Roberson was confirmed by the United States Senate as a Board member to the Defense Nuclear Facilities Safety Board for a term expiring October 18, 2013. Ms. Roberson brings to the Board over 25 years of experience in the nuclear field, with in-depth experience in low level waste management, environmental restoration, reactor operations and project management. Ms. Roberson previously served as a Board member from January 18, 2000 to July 18, 2001
John E. Mansfield, Board Member
Dr. Mansfield is an accomplished theoretical physicist with an exceptionally broad range of experience, both within and outside government, in the management of technology support to national defense programs. From the base of his academic work in elementary particle theory, philosophy, and classical languages, Dr. Mansfield has expanded his interests and contributions to a wide variety of areas of physics, engineering, operations analysis, and political-military studies in support of the national defense and civil space programs.
Joseph F. Bader, Board Member
Mr. Joseph F. Bader, of the District of Columbia, has been appointed a Member of the Defense Nuclear Facilities Safety Board on November 29, 2004. Mr. Bader has held executive and senior management positions primarily in the nuclear weapons complex and nuclear power sectors for Hill International, Inc., Fluor Daniel, Inc., Exxon Nuclear and Westinghouse Electric Corporation. He has conducted numerous program/project reviews and has extensive knowledge of design, construction management and operations of R&D facilities, materials production, and power plants. Mr. Bader set up and managed the Fluor Daniel Arlington, VA, office involved in the DOE Weapons Complex Reconfiguration Program and the Hill International participation in the DOE External Independent Reviews of DOE Projects. Mr. Bader received a B.S. in Mechanical Engineering from Villanova University, and an M.S. in Nuclear Engineering from the University of Virginia.
Larry W. Brown, Board Member
Larry W. Brown was confirmed by the U.S. Senate in September 2006 to be a member of the Defense Nuclear Facilities Safety Board for a term expiring October 18, 2010.

