[Spaceships] Magnetic Shielding above TL8

[DataPacRat]

Originally Posted by Anthony

The regular radiation rules assume gamma rays; low energy nuclei have much worse penetration. 0.2c is only 19 MeV/nucleon, even 0.5c is only 145.

Is this the source of 'solar flares and planetary radiation belts' getting a rPF*20, due to being 'mostly free electrons and alpha particles' (pB436)?

If so, a factor of 20 doesn't reduce a total accumulated dose of 95B rem by all that much...

Originally Posted by Say, it isn't that bad!

Plus, at higher tech levels, radiation shielding can be combined with both radiation medication, and genetic engineering for radiation resistance, tolerance, and recovery.

Resisting +10% more Rems; tolerating a Rem dose +10% higher; and being able to recover from 0.5 Rems per year; would (calculated simply) combine into being able to handle +33.1% more Rems per year. And, if dosage remains below 6.05 Rems per year, you could also slowly recover from Rem overdoses.

This particular probe is unmanned. It contains a fairly complete genetic library of Earth, and a small robofac that could theoretically eventually build gizmos to build cells from scratch, but during the interstellar voyage proper nothing living needs to be protected.