1944 Mar

Emilio Segre has improved his spontaneous fission estimates in cyclotron plutonium (essentially pure Pu-239) to 11 fissions/kg-sec. This is still acceptable for gun assembly, but greatly narrows the margin of security.

Related Images: 
Emilio Segre.
Date Range: 
1944CE Mar
Era: 
1944: Developing the Bomb [1]

Source URL: https://www.atomicheritage.org/event/1944-mar