[ RadSafe ] Space Propulsion, Enriched Uranium, Fusion, Etc.
JPreisig at aol.com
JPreisig at aol.com
Thu Feb 3 23:36:00 CST 2011
This is from: _jpreisig at aol.com_ (mailto:jpreisig at aol.com)
Hope your weekend will be a good one. Clearly, I haven't been
shopping for Hybrid cars
lately. All manner of hybrids seem to be available. That Jaguar sounds
like quite an
automobile (a Bad Boy????!!!!). I knew Schlumberger paid people
I guess I should have studied what was alluded to by Jeff Lahti
earlier on Radsafe. Rover,
Nerva etc. ---- US highly enriched reactor propulsion systems looked into
earlier by the US
government. A websearch via Google details reactor energies, impulse
power, reactor test times,
etc. I will have to look into all this further. 4000 MWthermal ---
wow--- see what enriched Uranium/
Plutonium fuel can do for you. More neutrons are produced by enriched
fuel also, so shielding
problems become a bit more difficult.
An early version of this system could be propelled into space
using a chemical propelled
rocket. That would necessitate using some sort of Lunar Landing Module to
reach and leave the
surface of Mars. Sound do-able. Like I said before, the nuclear
spacecraft with reactor need
not ever return to Earth. When its mission is over, the spacecraft could
be placed in a plastic bag
or other container and attached (permanently???) to the Moon.
Ultimately, a spacecraft more like a flying saucer (see the movie
Forbidden Planet or the TV
show --- Lost in Space???? --- USA) might be constructed which could
overcome the impulse
launch problems. Light and strong materials might allow such a flying
saucer to be launched from the
Earth's surface directly No more nasty and explosive chemical launch
mechanism, but rather the
saucer might do a direct dead lift right from the surface of the Earth.
Early models might struggle
to leave the Earth's gravitational field. I suspect such launches would
not be so dramatic as those
done using chemical propellant. USA has done research work using flying
saucers. Real information
about such sytems might not reach the common citizen in the USA for 25, 50,
75 years --- or
whatever the US declassification of documents schedule is. Clearly, in
the USA, there is still a
need to maintain a strategic/competitive edge over other nations.
Some information on Thorium use in reactors might be gotten from
(a paperback) on Reactors.
As Mr. Sidney Greenstreet once advised Bogart in the Maltese Falcon
"I advise you to,...Be
Careful". The USA clearly has all manner of
jets/planes/rockets/spacecraft in the air.
Perhaps early pre-manned missions to Mars will be done robotically.
This would be OK if
the one way flight time would be about 2 months or in that neighborhood.
A few training missions, and
then a flight crew would go to Mars. Do much testing, take a bit of
calculated risks and go
forward. My guess is that Westinghouse and Tesla were not so cautious
that it paralyzed their
ability to go forward with their work. Early chemical propulsion (rocket)
systems failed many times
before reliable rockets were finally created.
Now, go home and find your slide rules and remember the good old
days. And if you ever
get the chance to look at a US Mercury space capsule in Florida or wherever
(and especially look
at the electronics), do so. Most of us probably would never have gotten
into such a capsule.
And in the Health Physics community, I'm sure many stories about Chimps in
Have a good weekend. Regards, Joseph R. (Joe) Preisig, PhD
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