Re: Radiation shielding for unmanned lander on Io

On 22 Mar, 23:04, "Harvey" <harveypoll...@xxxxxxxxxxxx> wrote:
Hi

I am studying for an Astrophysics degree. I am carrying out a short
theoretical study considering the problems associated with placing an
" unmanned lander" on the surface (from the point of view of radiation
shielding ) on the surface of the Jovian moon Io. I know that
environment on Io contains extremely strong electromagnetic and
magnetic fields

Can you someone advise me:-

a) where I could find a relevant tutorial on the subject of radiation
shielding.

Google? But try looking for RXF1, or here for starters:
http://science.nasa.gov/headlines/y2005/25aug_plasticspaceships.htm

b) Suiggest links regarding the sort of the radiation protection
techniques required to avoid disruption the the on-bord electronic
intrumentation

I've heard that old fashioned electronics works better. I imagine you
could develop a self correcting triple system. Something like take
three SD cards, which are mirrored. A program constantly goes through
and finds bit level errors and corrects them.

I think the whole architecture would need to be redesigned to cater
for a much higher level of data corruption. Not sure where you find
out about that.

c) Can I use the same type of shielding for both magnatic field and
elctromagnetic field
d) The strength of the fields to be expected on Io

According to Zubrin in Entering Space, at Io orbit, radiation is 3,600
REM per day, which would probably kill a human in an hour. As for the
strengths of the fields, it should be possible to compute this given
Io's orbit and Jupiter's magnetic field strength.

Any advice on the topic would extremely appreciated


.

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