On Wed, 10 Nov 2004 00:38:18 GMT, Christian Ramos
wrote:


"John Thingstad" wrote in message
news

...snipped comment from John Schilling erroneously attributed to me...


I might add that the best shielding for a nuclear reactor would be to
place it
far away from the crew quarters. Radiation follows the inverse square
distance law, yes.
So put it on a boom far away from the crew quarters. Shape is of little
relevance to a spacecraft as long as it is symmetric around the axis of
thrust.
VASIMR is a true space drive not designed for use in a atmosphere.

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