Short Bio:
Mary Johansen worked with Dr. William Charlton to quantify the nuclear weapons latency value of the Joint Comprehensive Plan of Action (JCPOA) with the Islamic Republic of Iran. The JCPOA is intended to ensure that the nuclear program in Iran will exist solely for peaceful uses, but, given Iran’s past actions of nuclear hedging and pushing the boundaries of agreements, policymakers would benefit from a reliable method to judge the effectiveness of the agreement and how it should influence future policy. One method that can help inform policy decisions is using estimates of a State’s nuclear weapons latency. Nuclear Weapons Latency is defined as the time needed for a non-nuclear weapon state to develop a conventionally deliverable nuclear weapon. Johansen quantified Iran’s nuclear weapons latency both with and without the JCPOA using the Nuclear Weapons Latency Computational Tool developed by Dr. David Sweeney and Dr. Charlton at Texas A&M. This MATLAB-based software focuses on the use of time-dependent proliferation pathway modeling using Petri Nets. Johansen graduated from Mississippi State University with a B.S. in physics. She successfully defended her Master’s thesis in March of 2016 and graduated with her M.S. in nuclear engineering in May of 2016.
NSSPI Publications:
- M. Johansen, W. Charlton, D. Sweeney, "Study of the Nuclear Latency Value of the Joint Comprehensive Plan of Action with the Islamic Republic of Iran", 57th Annual Meeting of the Institute for Nuclear Materials Management (INMM), Atlanta, Georgia, 24-28 July 2016.
- M. Johansen, "The Nuclear Weapons Latency Value of the Joint Comprehensive Plan of Action with the Islamic Republic of Iran", M.S. Thesis, Nuclear Engineering, Texas A&M University, College Station, TX (2016).