Fusion Message Board

In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.

Subject: Re: Secondary Neutrons (Li(n) cross sections)
Date: May 28, 5:16 pm
Poster: Jim Lux

On May 28, 5:16 pm, Jim Lux wrote:

>You would be much better off using the secondary
>neutrons on Lithium. Both common isotopes of
>Li are very amenable to making Tritium when
>bombarded with neutrons.
>I'm not sure about the neutron energy crossections
>for these two reactions, but the second reaction
>is what caused the famous runaway at Bikini Atoll.
(i.e. Castle Bravo/Shrimp)

My handbook (50's) only shows thermal cross sections for Li, which are around 20-30 barns. The tables don't give cross sections for fast neuts for light elements (