The Los Alamos Primer - Part 2

Simplest Estimate of Minimum Size of Bomb In Part 1 I covered the first few sections of the Los Alamos Primer: energy release, cross-sections, and why ordinary uranium can't sustain a chain reaction. This post picks up where we left off - figuring out how big a lump of fissile material needs to be before it goes critical. We will model neutron transport as a diffusion process and solve for the…