Timothy J. Jorgensen, PhD, MPH; Associate Professor & Program Director
  • Georgetown University; 3970 Reservoir Road NW; TRB, EG16; Washington, DC 20057
  • tel: 202-687-1810
  • email: tjorge01@georgetown.edu

Dr. Jorgensen is a radiation biologist, cancer epidemiologist, and public health professional. He has formal training in radiation health sciences and radiation biology (Ph.D., Johns Hopkins); cancer molecular biology (postdoctoral fellowship; Dana-Farber Cancer Institute and Harvard Medical School); risk assessment (graduate certificate; Center for Risk Science and Public Policy, Johns Hopkins); and epidemiology (MPH, Johns Hopkins). He is board certified in Public Health (CPH), and a Member of Council on the National Council for Radiation Protection. He is Chairman of the Radiation Safety Committee at Georgetown University. He teach graduate courses in radiation biology, radiation protection, and radiation risk assessment in the Health Physics Program, and he trains radiation oncology residents at Georgetown University Hospital. In addition to his regular appointment in the Department of Radiation Medicine at Georgetown, he also holds an adjunct faculty appointment in the Department of Epidemiology at the Bloomberg School of Public Health at Johns Hopkins. Dr. Jorgensen's research interests include the genetic factors that determine cellular radioresistance, and genetic variants that may modify the risk of radiation-induced cancer. He is the author of Strange Glow: The Story of Radiation, published in 2016 by Princeton Univerisity Press.

  • Georgetown University; 3970 Reservoir Road NW; Building D; Washington, DC 20057
  • email: lb589@georgetown.edu

Dr. Benevides is a medical/health physicist, radiation protection and Health Services professional. He has formal training in Nuclear Engineering (Ph.D., University of Florida); Radiation Science (MS, Georgetown University); Health Services Administration (MSA, Central Michigan University). He is currently a health physicist for the US Nuclear Regulatory Commission, Office of Regulatory Research. He served our nation in excess of thirty years in the US Navy as a Radiation Health Officer reaching the rank of Captain. He has published over thirty peer-reviewed articles and currently serves as an associate editor in Medical Physics and reviewer for Radiation Measurements.


David Smith, PhD, associate professor

Dr. Smith is the Director, Radiation Safety, Medstar Georgetown University Hospital.   Prior to this appointment he was the Executive Director, National Council on Radiation Protection and Measurements.  Dr. Smith served in the U.S. Air Force for over 23 years culminating with his selection as the Health Physics Consultant to two, U.S. Air Force Surgeons General.  Dr. Smith has also served the Director, Graduate Environmental Engineering and Sciences Program, and Director, Graduate Combating Weapons of Mass Destruction Program, while Assistant Professor at the Air Force Institute of Technology.  Dr. Smith received a B.A. in Mathematics from Central Methodist University, an M.S. in Nuclear Engineering (Health Physics) from the University of Missouri-Columbia, and an M.S. in Nuclear Engineering Sciences (Medical Physics) from the University of Florida-Gainesville. Dr. Smith earned his Ph.D. from The Ohio State University where his research was focused on impact analysis from a radiological terrorism event. He has authored or co-authored numerous peer-reviewed publications, presentations, and technical reports, as well as supervised research on topics addressing various aspects of radiological terrorism and occupational and environmental health.


  • Georgetown University; 3970 Reservoir Road NW; Washington, DC 20057
  • tel: 301-365-3485
  • email: jim.finucane@yahoo.com

Dr. Finucane obtained his undergraduate degree in Engineering Science in 1961 from Stanford University. He completed his graduate education at Berkeley where he earned his M.Sc. and Ph.D. degrees in 1966 and 1969 respectively -- both in Nuclear Engineering. He spent most of his career as a scientist working for the U.S. department of Energy and for the International Atomic Energy Agency (IAEA). He represented the United States at various technical international forums, and managed a variety of programs to improve the safety of nuclear power and handle spent nuclear fuel. He is the Course Director of two graduate courses including: Introduction to Nuclear Nonproliferation and Indicators of Nuclear Proliferation. Both courses include topics ranging from the fundamentals of radiation physics to the defense against nuclear or radiological terrorism.

  • Georgetown University; 3970 Reservoir Road NW; Building D; Washington, DC 20057
  • tel: 301-379-3388
  • email: schauer@ncrp.com

Dr. David A. Schauer is Executive Director Emeritus of the National Council on Radiation Protection and Measurements and a subject matter expert with Science Applications International Corporation. He is also an Adjunct Associate Professor at the University of Nevada Las Vegas. Since 2005, Dr. Schauer has served as a Program Evaluator for the Accreditation Board on Engineering and Technology. He received his graduate degrees from Georgetown (MS) and Johns Hopkins University (ScD) and is a board certified health physicist (CHP). From 1984 to 2004, Dr. Schauer served as a naval officer and during this time he held numerous technical and leadership positions including Science Advisor of the Naval Dosimetry Center in Bethesda, MD. He has authored or co-authored over 50 journal articles, book chapters, proceedings and technical reports. Dr. Schauer serves on the Editorial Boards of Radiation Protection Dosimetry and Radiation Measurements and has given over 25 invited and keynote lectures. His primary research interests are personnel dosimetry, biodosimetry and radiation effects.

  • Georgetown University Law Center; 600 New Jersey Ave NW, Washington, DC 20001
  • tel: 202-694-7014
  • email: davej@dnfsb.gov

David S. Jonas is the General Counsel of the Defense Nuclear Facilities Safety Board. In that capacity he is the chief legal and policy advisor to a Board of five Presidentially appointed, Senate-confirmed officials tasked with oversight of the Department of Energy (DOE) nuclear weapons complex. He joined the Board on October 7, 2012. Prior to that, he served as Director of Legal Strategy and Analysis in the Office of the General Counsel at DOE. He was appointed to the Senior Executive Service as General Counsel of the National Nuclear Security Administration (NNSA) on April 17, 2005. NNSA is a separately organized agency within DOE. He began his service with NNSA as the Deputy General Counsel in 2001 and served as Acting General Counsel from 2003-2005. Mr. Jonas is an adjunct professor at the Georgetown University Law Center where he teaches nuclear non-proliferation law and policy, and he is a frequent speaker on this topic. Mr. Jonas attended Denison University in Granville, OH where he graduated with a B.A. in Political Science. He received his J.D. from the Wake Forest University School of Law in Winston-Salem, NC; an LL.M. in military law from the Judge Advocate General's School, U.S. Army, in Charlottesville, VA and an LL.M. in International and Comparative Law from Georgetown University Law Center, With Distinction. He received an M.A. in National Security and Strategic Studies from the U.S. Naval War College With Highest Distinction.

  • Georgetown University School of Foreign Service, and Department of Government; Mortara Building, room 212; Washington, DC 20001
  • tel: 202-687-5583
  • email: kal25@georgetown.edu

Keir Lieber is Associate Professor in the Edmund A. Walsh School of Foreign Service and the Department of Government at Georgetown University. He earned his M.A. and Ph.D. in Political Science from the University of Chicago, and graduated Phi Beta Kappa with a B.A. from the University of Wisconsin-Madison. He previously taught at the University of Notre Dame. Prof. Lieber's areas of expertise include nuclear weapons, strategy, and deterrence; the causes of war; U.S. foreign policy; and international relations theory. He is author of War and the Engineers: The Primacy of Politics over Technology (Cornell University Press, 2005, 2008) and editor of War, Peace, and International Political Realism (University of Notre Dame Press, 2009). His articles have appeared in the leading scholarly and foreign policy publications, including International Security, Security Studies, Foreign Affairs, and the Atlantic Monthly. He has been awarded fellowships from the Brookings Institution, Council on Foreign Relations, Earhart Foundation, and Smith Richardson Foundation. Prof. Lieber is currently writing a book (with Daryl Press, of Dartmouth College) on nuclear weapons and international politics.





  • Georgetown University; 3970 Reservoir Road NW; TRB, E211; Washington, DC 20057
  • tel: 202-687-8352
  • email: jungm@georgetown.edu

Mira Jung, Ph.D. received her basic training in molecular biology and microbiology at the University of Kansas, and postdoctoral training in radiation biology and molecular biology at Georgetown University. She is currently Professor and Director of Molecular Radiation Laboratory and Microarray Core-Facility in Radiation Medicine and Microbiology at Georgetown University Medical Center. The research focuses on molecular mechanisms underlying radiation sensitivity. Identification of factors associated with the responses of mammalian cells to ionizing radiation has been a major area of her research. The research contributions include the findings that NF-kB activation is a critical mechanism for cell survival of cells from patients with the human radiation sensitivity syndrome of ataxia-telangiectasia and the mutated AT gene product, ATM, is involved in this process. Recently, her research has made an important breakthrough in signal transduction studies that implicate the chromatin structure modification in the mechanism in radiation sensitivity. Thus, the overall research goals are to determine mechanisms of radiation responses of tumor cell lines, identify targets for therapeutic gain, and develop strategies for using this knowledge for future development of translational research projects.

  • Georgetown University; 3970 Reservoir Road NW; TRB, E215; Washington, DC 20057
  • tel: 202-687-2226
  • email: notariov@georgetown.edu

Dr. Vicente Notario is Professor of Radiation Medicine and Biochemistry and Molecular & Cellular Biology. He is also Director of the Division of Radiation Research in the Department of Radiation Medicine, and Leader of the Radiation Biology Program of the V.T. Lombardi Comprehensive Cancer Center. Dr. Notario's research focuses on the study of molecular mechanisms of development of malignant tumors, and involves the investigation of the effects of environmental carcinogens, such as chemical pollutants and radiation, on mammalian cells with regard to the expression and activity of cancer genes and their protein products. Currently, there are three main research areas in Dr. Notario's laboratory: 1) characterization of the molecular mechanism of action of a novel oncogene, termed PCPH, originally isolated in Dr. Notario's laboratory, and functional studies on its role in the development of prostate cancer; 2) preclinical studies of molecular targeting approaches to block the activity of the EWS/FLI-1 oncogene present in tumors of the Ewing's sarcoma family, and 3) mechanistic analyses of the involvement of the Dlk1 protein in determining the invasiveness and metastatic program of human lung tumors cells of the small cell lung carcinoma (SCLC) type. Additional ongoing pilot experiments involve studies on the anti-cancer actions of human dietary components.