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Welcome to the Objective Europa forum for general debate and discussions in areas related to a crewed mission to Jovian moon Europa. Suggestions and ideas in the forum will not be filed as part of the research in phase-I.

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Pages: 1
Author Topic: En Route Radiation Mitigation


Pascal
Administrator
Posts: 12
En Route Radiation Mitigation
on: September 24, 2013, 20:26

With discussion of surface protection of radiation underway in another thread, I would like to start this one to address the particulars of en route radiation mitigation. This trip will require traveling while exposed to heavy amounts of radiation that may cause harm if not attended to. Ideas are welcome!

I would propose research into the particular types of radiation emmitted - it is possible that we can create a dense/thick enough shield around the craft that radiation would not cause damage to the crew. I would suggest that the initial craft would have a heavy encasement that would protect it until the craft could land and establish underground for radiation mitigation.

Surely there are other ideas though - anyone?



EUvisionar-
y
Europa Dreamer
Posts: 23
Re: En Route Radiation Mitigation
on: October 17, 2013, 15:35

There's something I've heard about the intensity of light being reflected off the surface of snow lands like Antarctica, which hurts the eye. So maybe goggles have to be invented which repels radiation and such kind of intensity on Europa?



Rickstar
Europa Dreamer
Posts: 2
Re: En Route Radiation Mitigation
on: October 23, 2013, 06:08

I agree,spacecraft shielding of 1 foot of water is ample to prevent any noticeable radiation difference to the crew,while in transit.I propose that since Europa is tidally locked to Jupiter,that we land on the side opposite Jupiter,which should further mitigate most of the radiation,once the crew are on the surface.



Bryan
Europa Astronaut
Posts: 98
Re: En Route Radiation Mitigation
on: November 2, 2013, 05:41

It's less the side away from Jupiter and more the side away from the moving Van Allen belts.

http://www.astrobio.net/exclusive/3010/hiding-from-jupiters-radiation



Tomi
Europa Dreamer
Posts: 1
Re: En Route Radiation Mitigation
on: November 22, 2013, 21:17

Apparently human feces make good radiation shields on space shuttles. I know on Atlantis and many others, they would store the astronauts excrements around the contour of the ship.



EUvisionar-
y
Europa Dreamer
Posts: 23
Re: En Route Radiation Mitigation
on: May 5, 2014, 06:05

Why is it that the Europan ice shields radiation more than metal? Or is it that the thickness decides in both cases?



EUengg
Europa Dreamer
Posts: 4
Re: En Route Radiation Mitigation
on: May 5, 2014, 12:24

I guess use of nanomaterials must come into play. Maybe a sheet or a device in an orbiting satellite that can give the astronauts power. Interesting article http://www.newscientist.com/article/dn13545-nanomaterial-turns-radiation-directly-into-electricity.html



Bryan
Europa Astronaut
Posts: 98
Re: En Route Radiation Mitigation
on: August 19, 2014, 23:56

Quote from EUvisionary on May 5, 2014, 06:05
Why is it that the Europan ice shields radiation more than metal? Or is it that the thickness decides in both cases?

It's mostly the thickness of the ice that allows for the shielding.



Bryan
Europa Astronaut
Posts: 98
Re: En Route Radiation Mitigation
on: August 20, 2014, 00:03

Quote from EUengg on May 5, 2014, 12:24
I guess use of nanomaterials must come into play. Maybe a sheet or a device in an orbiting satellite that can give the astronauts power. Interesting article http://www.newscientist.com/article/dn13545-nanomaterial-turns-radiation-directly-into-electricity.html

Are you suggesting the device be used primarily for power generation, or are you thinking of a sheet to actually block the radiation. But if the latter, it would have to be huge.

The technical problem of creating a thin radiation-blocking sheet aside, it would likely be easier to just cover the astronauts's habitats, vehicles, and spacesuits than try to overcome the technical problems of a giant sheet in space.

Regarding the article, it sounds like this device would have promise in turning radiation (in abundance in the Jovian system) into energy, though I'm not sure if it would be well adapted at the moment to the radiation generated by the radiation belts.

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