According to this: http://www.iaea.org/safeguards/Symposiu ... ry/027.pdf
, a 1GW nuclear fission reactor would produce a whopping 1.5e20 neutrinos per second! That seems to scale with power output (so assuming that fusion is similar output), a Kennedy (with a 150MW reactor, according to GDW 2300AD) would produce 2.25e19 neutrinos per second.
At a distance of 1 metre that drops to about 1e19 neutrinos per m² per second. At 100m that would drop to 2.25e15 Nu... still way too high for the limit I propose. Even at 1000m, it'd be 2.25e13 Nu, and that would be a really huge spaceship with the drive and reactor at opposite ends! And I don't think the Kennedy is that big... (I can't actually find a length measurement for it... anyone know where that could be located?)
But the idea isn't quite blown out of the water. I notice that a lot of the civilian ships in GDW 2300AD have much smaller MHD Turbine plants, which presumably don't emit neutrinos. So this limit could work for them, while giving bigger (military?) ships an advantage since they wouldn't be affected by the neutrino flux limit (their drives are always going to be operating close enough to their fusion reactors to be able to discharge, so all they'll need is the gravitational field to discharge into. Oooo, which means that they COULD use brown dwarfs to get to places that other ships can't). Additionally, any ships close to these vessels would also be able to use the neutrino flux from the reactors to initiate their own drive discharge, which is kinda handy. Hrm... that makes things kinda interesting.
This post (or any other post I made here) may not be quoted or copied beyond the SF RPG boards without my explicit permission.evildrganymede.net - visit the The Worldbuilding HubCheck out my Youtube channel for all my streamed gaming videos!