Search Results for: Polonium-Beryllium Initiator

Number of results: 3


A device that introduces neutrons at just the right instant to trigger a fission chain reaction, when the assembly process has reached the stage at which the fissile material has supercritical mass. This allows some of the early stages in the chain reaction to be bypassed.

Fat Man: Implosion-Type BombOpen link in new window | (

See Also:

Implosion Design
Nuclear Weapons Design
National Science Foundation Logo National Science Digital Library Logo

This project is part of the National Science Digital Library funded by the Division of Undergraduate Education, National Science Foundation Grant 0434253