Re: (TFT) Mars - Vasimr & Radiation.

[Rick Smith <rsmith@lightspeed.ca>]

Hi Mark,
  Thanks for the link.  Yes, if you go to Mars at 
a period of solar maximum, the cosmic rays are 
slightly attenuated.  But then you have the much
higher chance of getting more radiation from a 
big solar flare.  

  My understanding is that your better off going 
at a solar minimum.  But in either case, the 
radiation is not that bad.  (About equal to the
lifetime exposure of an commercial jet pilot if I 
remember correctly.)

  Warm regards, Rick.

On Sat, 2011-03-09 at 23:01 -0500, Mark Tapley wrote:
> At 16:16 -0400 9/1/11, Denis wrote:
> >  If you have better data or studies and can point me in the
> >right direction, I'll happily read these!
> 
> http://www.spenvis.oma.be/
> 
> You'll have to register, but then you can run all the cosmic ray, 
> trapped radiation, etc. models you want. They are continually 
> updating their models, too, so you get pretty recent stuff.
> 
> No connection other than as a satisfied user.
> 
> I think it'll tell you that cosmic rays are almost unaffected by 
> Earth's magnetosphere, but mostly stopped by the atmosphere. They are 
> also attenuated by the heliosphere during solar maximum, so they 
> would get slightly worse the farther from the sun you are.
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