出典:Wikipedia
出典:『Wikipedia』 (2010/11/22 19:42 UTC 版)
Project Excalibur was a United States government nuclear weapons research program to develop a nuclear pumped x-ray laser for ballistic missile defence. It became part of the Strategic Defense Initiative (SDI). Conceived by nuclear scientist Edward Teller, the concept involved packing large numbers of expendable x-ray lasers into a nuclear bomb. When it detonated, the bomb would fire laser beams in many directions. The intention was to shoot down enemy nuclear missiles.