3 ms·
IIRC, the neutron branching fraction for the proton-boron reaction is around 1%. So it is not clean, but the flux is low enough not to do much damage to the wal
by Daniel_Newby 14y ago
IIRC, the neutron branching fraction for the proton-boron reaction is around 1%. So it is not clean, but the flux is low enough not to do much damage to the walls of the fusion chamber.
- DennisP 14y agoTrue. It would need a bit of shielding. Some of the picosecond laser papers say the total radioactivity per megawatt would be less than what's released by burning coal, which contains a little thorium and uranium. Here's an abstract that mentions that: http://www.davidpublishing.com/journals_show_abstract.html?7377-0 http://www.davidpublishing.com/journals_show_abstract.html?7... (Google will turn up plenty of full papers though.)