Fred Roberts

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Terrorist nuclear attack is a potentially devastating threat to homeland security. It is increasingly important to have the capability to intercept illicit nuclear materials entering the country and to monitor for nuclear threats emerging from within. This article describes a variety of approaches to sensor management in a multi-institution project on(More)
Nuclear attacks are among the most devastating terrorist attacks, with severe losses of human lives as well as damage to infrastructure. It becomes increasingly vital to have sophisticated nuclear surveillance and detection systems deployed in major cities in the U.S. to deter such threats. In this paper, we outline a robust system of a mobile sensor(More)
—Nuclear attacks are among the most devastating terrorist attacks, with severe losses of human lives as well as damage to infrastructure. It becomes increasingly vital to have sophisticated nuclear surveillance and detection systems deployed in major cities in the U.S. to deter such threats. In this paper, we outline a robust system of a mobile sensor(More)
Nuclear attacks are among the most devastating terrorist attacks, with severe loss of human lives as well as damage to infrastructure. To deter such threats, it becomes increasingly vital to have sophisticated nuclear surveillance and detection systems deployed in major cities in the U.S., such as New York City. In this paper, we design a mobile sensor(More)
Potential nuclear attacks are among the most devastating terrorist attacks, with severe loss of human lives as well as damage to infrastructure. To deter such threats, it becomes increasingly vital to have sophisticated nuclear surveillance and detection systems deployed in major cities in the U.S., such as New York City. In this paper, we design a mobile(More)
particular, the authors appreciate the encouragement of Georgia Harrigan, our DHS program officer. The opinions, findings, conclusions, or recommendations expressed herein are those of Rail Security Simulation Models 3 the authors and do not necessarily represent the views of the Department of Homeland Security or Department of Defense. Abstract We are(More)
2 Acknowledgments: These notes are based on many quarters of Math 381 at the University of Washington. They have developed in a wiki fashion. The original notes were compiled by Randy LeVeque in Applied Math at UW. Tim Chartier and Anne Greenbaum contributed significantly to the current version in 2001-2002. Jim Burke contributed a portion of the chapter on(More)