United States Naval Academy The Effects of Nuclear Weapons ER486A Spring 2016 Section 4001 12 January 2016 1 Objective Demonstrate a basic understanding of the effects of nuclear weapons. This includes: the history of the US nuclear weapons program; weapons physics including assembly, fission, fusion, and kinetic disassembly; yield calculations; radiation effects; fallout calculations and modeling; and US policy regarding nuclear weapons. 2 Instructor Maj Jeremy Best USMC BS Aerospace Engineering, University of Oklahoma 2004 MS Nuclear Engineering, Air Force Institute of Technology 2013 Office: Office phone: E-mail: Phone: 3 Chauvenet 273 410-293-6686 best@usna.edu 405-204-9549 (Valid ∼1700–2100) Text Glasstone & Dolan - 1977 (provided) Swords of Armageddon - Hanson (provided electronically) Introduction to the Physics of Nuclear Weapons Effects - Bridgman (selected sections provided) The course web page is at: http://www.usna.edu/Users/physics/best/NewCourse.php 4 Grading Your grades will be calculated using the following percentages: Final Grade Progress Grade Homework Projects Quizzes Hour Exams 20% 25% 15% 40% Homework Projects Quizzes Hour Exams Final Exam 15% 20% 10% 30% 25% Letter grades are defined as normal: A > 90%, B > 80%, C > 70%, D > 60% I reserve the right to adjust these guidelines by as much as 5% based on my judgment of your effort in this course. Should you fail the final exam, I reserve the right to fail you for the course. Do not assume your current grade exempts you from applying yourself on an exam. There is never an excuse for lack of effort. 1 5 Homework and Projects You must demonstrate proficiency in technical subjects by applying your knowledge to solving problems. Failure to turn in all assignments may result in me invoking the discretion clause above based on lack of effort. Late assignments will be accepted, but at a 50% credit deduction. Excessive numbers of late assignments will affect my evaluation of your effort. There will be approximately 5 projects during the semester. These are done in groups of 2, where the team members must be different for each project. The projects will include a class presentation and could include a written, documented paper if directed by me. 6 Exams and Quizzes We may do occasional quizzes. Most will be individual, closed book efforts. Quizzes can be on both recent and less-recent material. Chapter exams are graded with partial credit, where the work is worth substantially more than the correct answer. Show all the work necessary to justify your answer or you will not receive full credit. 7 Getting Help Extra instruction is best obtained by appointment. Check my calendar (public via Google Apps for Government) or my office door to find when I am free. You are welcome to drop by unannounced, but I reserve the right to be busy in that case. I expect you to have looked at the homework/quiz/exam and have some specific questions. Calls up to about 2100 are fine. 8 Conduct • Act like what you will soon be, a junior officer in the United States Navy/Marine Corps. • This is a hard class, and you will be required to work in order to pass. There is no excuse for lack of effort. • Do not sleep in this class. Stand in the back of the room, or you will be stood in the back of the room. I have no problem making an example of sleepers. • Do not use your phone or computer during this class unless authorized. If this is abused by Email, Facebook, or any non-course related website the privilege will be revoked. • For head calls, simply leave quietly without disturbing the class and return immediately. Only one individual at a time during exams. • Do not cheat. Ever. Evidence of cheating will be prosecuted to the fullest extent possible. 9 Course Overview This course will introduce nuclear weapons, their effects, and policy surrounding their use. The course begins with a historical development of US nuclear weapons, including their only wartime use in Japan. The course then gets quantitative with describing the physics of assembly, fission, and disassembly of a nuclear weapon. The prompt effects of weapons in 5 burst locations are discussed, including x-rays, shock propagation, EMP, and early radioactivity. Residual effects of nuclear weapons are then developed including fallout modeling, structural damage, and fires. Biological effects are discussed with a focus on longer lived radio-isotopes. The course is wrapped up with US and international policy regarding nuclear weapons. 2 10 Learning Outcomes At the end of the course, students will be able to: 1. Calculate nuclear weapon yield using burst physics and given information such as height of burst, burn up factor, type of material, and mass. 2. Describe the differences between high altitude, low altitude, surface contact, underwater, and underground burst effects. 3. Calculate radiation dose rates from a nuclear weapon given modeling software, and a scenario including weather data and basic weapon parameters. 4. Explain the biological effects of radiation to human tissue, including the body areas most and least vulnerable to nuclear radiation. 5. Explain US policy regarding nuclear weapons: Why do they exist? How are they used every day? How do we prevent unwanted weapons in our country? 3