bombardmentforce wrote:

Pooh Bear wrote:
...

You might care to consider that humans will be 'fried' close to a nuclear
reactor.

Lead shielding will make a craft impractically heavy for space flight.


Here's the General Atomic lead and hydrocarbons shield design as
presented to NASA in 1964.

http://spacebombardment.blogspot.com...l-atomics.html

"According to recent studies of planetary
exploration requirements, this shielding is sufficient to attenuate the
probable solar-flare radiation

SOLAR FLARE !

to dose values similar to the 50 REM
allowed for propulsion. the total mission dose from both sources
was expected to be about 100 rem".

And that's supposed to be safe ?

Exposure (rem) Health Effect Time to Onset


5-10 radiation burns;
more severe as exposure increases.
changes in blood chemistry

50 nausea hours

55 fatigue

70 vomiting

75 hair loss 2-3
weeks

90 diarrhea

100 hemorrhage


http://www.epa.gov/radiation/underst...th_effects.htm

So you'll have one *very* sick crew !

Bloody brilliant !



Graham