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Re: Dose during Mars trip
Reply to: RE>Dose during Mars trip
I don't have the answer, but the dose would depend on the power plant and
flight plan. An ion drive would cause gradual acceleration and maximize
exposure to the Van Allen belts outbound. Something more dramatic like an
atomic rocket or chemical booster would decrease Van Allen dose, but the dose
from a nuclear rocket would need to be considered. Solar powered ion drive
would contribute no dose, but nuclear powered ion drive would. It may be the
high voltage of ion drives would create x-rays.
Return arrangements will influence dose. A retro-rocket return to orbit will
increase dose, an Apollo-style cpasule reentry to the earth's surface will
reduce dose.
Being caught by a solar flare would also boost dose, hence the concerns about
putting "storm cellars" in interplanetary spacecraft.
Ship-made ionizing radiation dose would be minimized by making the ship long
with the source at one end and the crew at the other with the hulk of the
storm cellar plus fuel, consumables, ships equipment, surface
vehicles/supplies, etc., etc., etc. between crew and source.
--------------------------------------
Date: 4/15/96 12:47 PM
To: GORDON MILLER
From: radsafe@romulus.ehs.uiuc.edu
Does anyone happen to know the approximate dose an astronaut might
receive during a RT to Mars without extra shielding? What increase in
dose might be expected from a solar flare during the trip?
Rick
Richard G. Strickert, Ph.D. | "Before I came here I was confused
Radian International, Austin, TX | about this subject. Having listened
512-310-5259, FAX 512-244-0160 | to your lecture I am still confused.
Internet:rick_strickert@radian.com | But on a higher level."
---> "All written IMHO." <--- | - E. Fermi
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Subject: Dose during Mars trip
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