The Experts below are selected from a list of 414 Experts worldwide ranked by ideXlab platform
Skroch, Eric M. - One of the best experts on this subject based on the ideXlab platform.
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How to optimally interdict a belligerent project to develop a nuclear Weapon
Monterey California. Naval Postgraduate School, 2004Co-Authors: Skroch, Eric M.Abstract:Despite decades of energetic international control efforts, nuclear Weapons technology continues to spread worldwide. To understand how these complex Weapons programs can be developed, we assume the role of a nation seeking to build a first Fission Weapon, and the ability to continue to build more. We introduce a large-scale project management model that includes alternate development paths to achieve certain key technical milestones. We show how such a project can be optimally accelerated by expe-diting critical tasks. Next, we present a new analysis tool to detect vulnerabilities in such a development program: we seek optimal actions to impede, set back and/or otherwise frustrate completion of a first Weapon, even if the proliferator knows what we are doing to delay things. This two-sided project evaluation tool is implemented with a combination of off-the-shelf project management software, optimization software and custom code. An illustrative case study of a first Fission Weapon program shows how this new analysis tool can be used. Our methods also apply to chemical, biological and/or radiological dispersion Weapons, as well as to more conventional strategic industrial and commercial activities.http://archive.org/details/howtooptimallyin109451630Lieutenant, Supply Corps, United States NavyApproved for public release; distribution is unlimited
Caroline R Milne - One of the best experts on this subject based on the ideXlab platform.
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simple calculation of the critical mass for highly enriched uranium and plutonium 239
American Journal of Physics, 2014Co-Authors: Christopher F Chyba, Caroline R MilneAbstract:The correct calculation of and values for the critical mass of uranium or plutonium necessary for a nuclear Fission Weapon have long been understood and publicly available. The calculation requires solving the radial component in spherical coordinates of a diffusion equation with a source term, so is beyond the reach of most public policy and many first-year college physics students. Yet it is important for the basic physical ideas behind the calculation to be understood by those without calculus who are nonetheless interested in international security, arms control, or nuclear non-proliferation. This article estimates the critical mass in an intuitive way that requires only algebra.
Christopher F Chyba - One of the best experts on this subject based on the ideXlab platform.
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simple calculation of the critical mass for highly enriched uranium and plutonium 239
American Journal of Physics, 2014Co-Authors: Christopher F Chyba, Caroline R MilneAbstract:The correct calculation of and values for the critical mass of uranium or plutonium necessary for a nuclear Fission Weapon have long been understood and publicly available. The calculation requires solving the radial component in spherical coordinates of a diffusion equation with a source term, so is beyond the reach of most public policy and many first-year college physics students. Yet it is important for the basic physical ideas behind the calculation to be understood by those without calculus who are nonetheless interested in international security, arms control, or nuclear non-proliferation. This article estimates the critical mass in an intuitive way that requires only algebra.
Bar-dayan Yaron - One of the best experts on this subject based on the ideXlab platform.
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Health implications of radiological terrorism: Perspectives from Israel
Medknow Publications, 2026Co-Authors: Hagby Moti, Goldberg Avishay, Becker Steven, Schwartz Dagan, Bar-dayan YaronAbstract:September 11th events taught us, members of the medical community, that we need to prepared for the worst. Nuclear terror is no longer science fiction. Radiological Weapons of mass terror come in three flavors: The first one is nuclear. Since 1992, there have been six known cases of highly enriched uranium or plutonium being intercepted by authorities as it passed in or out of the former Soviet Union. Constructing a nuclear Fission Weapon requires high-level expertise, substantial facilities, and lots of money. All three of which would be difficult, although not impossible, for a terrorist group to pull off without state support. However, terrorists could carry out potential mass destruction without sophisticated Weaponry by targeting nuclear facilities using conventional bombs or hijacked aircrafts. Terror attacks could also carry out mass panic and radioactive contamination of people and environment by dispersal of radioactive materials with or without the use of conventional explosive devices. Most medical and para-medical personnel are not familiar with CBRN terror and radiation casualties. To lessen the impact of those potential attacks and provide care for the greatest number of potential survivors, the community as a whole – and the medical community in particular – must acquire the knowledge of the various signs and symptoms of exposure to irradiation and radioactive contamination as well as have a planned response once such an attack has occurred. Based on knowledge of radiation hazards, medical emergency planers should analyze the risks of each scenario, offer feasible solutions and translate them into internationally accepted plans that would be simple to carry out once such an attack took place. The planned response should be questioned and tested by drills. Those drills should check the triage, evacuation routes, decontamination posts, evacuation centers and receiving hospitals. It is crucial that the drill will consist of simulated casualties that will follow the evacuation route from point zero to the ED. Knowledge and exercise will reduce terror (fear) from radiation and help the community as a whole better cope with such an event. This article will review the general information of radiation types, their biological damage, clinical appearance and general concepts of nuclear event planning, focusing on medical response and focus on the Israeli perspective
Hagby Moti - One of the best experts on this subject based on the ideXlab platform.
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Health implications of radiological terrorism: Perspectives from Israel
Medknow Publications, 2026Co-Authors: Hagby Moti, Goldberg Avishay, Becker Steven, Schwartz Dagan, Bar-dayan YaronAbstract:September 11th events taught us, members of the medical community, that we need to prepared for the worst. Nuclear terror is no longer science fiction. Radiological Weapons of mass terror come in three flavors: The first one is nuclear. Since 1992, there have been six known cases of highly enriched uranium or plutonium being intercepted by authorities as it passed in or out of the former Soviet Union. Constructing a nuclear Fission Weapon requires high-level expertise, substantial facilities, and lots of money. All three of which would be difficult, although not impossible, for a terrorist group to pull off without state support. However, terrorists could carry out potential mass destruction without sophisticated Weaponry by targeting nuclear facilities using conventional bombs or hijacked aircrafts. Terror attacks could also carry out mass panic and radioactive contamination of people and environment by dispersal of radioactive materials with or without the use of conventional explosive devices. Most medical and para-medical personnel are not familiar with CBRN terror and radiation casualties. To lessen the impact of those potential attacks and provide care for the greatest number of potential survivors, the community as a whole – and the medical community in particular – must acquire the knowledge of the various signs and symptoms of exposure to irradiation and radioactive contamination as well as have a planned response once such an attack has occurred. Based on knowledge of radiation hazards, medical emergency planers should analyze the risks of each scenario, offer feasible solutions and translate them into internationally accepted plans that would be simple to carry out once such an attack took place. The planned response should be questioned and tested by drills. Those drills should check the triage, evacuation routes, decontamination posts, evacuation centers and receiving hospitals. It is crucial that the drill will consist of simulated casualties that will follow the evacuation route from point zero to the ED. Knowledge and exercise will reduce terror (fear) from radiation and help the community as a whole better cope with such an event. This article will review the general information of radiation types, their biological damage, clinical appearance and general concepts of nuclear event planning, focusing on medical response and focus on the Israeli perspective