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Questions tagged [radiation]

Questions about impact of radiation on space exploration.

3 votes
3 answers
222 views

Does human sensitivity to radiation impose a maximum distance on interstellar voyages regardless of radiation shielding or speed?

The duration of crewed interstellar voyages is potentially limited by exposure to interstellar radiation. radiation dose obtained in a non-relativistic space module moving in interstellar space would ...
Woody's user avatar
  • 22.9k
9 votes
3 answers
2k views

Could space habitats have large transparent roofs?

This is a question I have regarding the design of space habitats. Basically, a lot of the designs I've seen end up having transparent roofs that are open to space, like this: Or this (technically a ...
TerranGames's user avatar
5 votes
2 answers
229 views

Why radiation hardened processors are designed to withstand so large total ionizing doses?

I took a look at the Preliminary Radiation Analysis of the Total Ionizing Dose for the Resource Prospector Mission paper and was quite surprised to find how "low" total radiation doses ...
xfii's user avatar
  • 53
18 votes
1 answer
5k views

Is there still a legless phantom crew member on ISS?

The Phantom Torso was designed to gather data on ISS crew Radiation exposure. What was its fate?
Woody's user avatar
  • 22.9k
4 votes
1 answer
275 views

How beaten up would Voyager 1 be in 40,000 years?

How much damage would there be, both physically and to the computers, memory etc, upon arrival to Gliese 445 in 40k years by radiation and interstellar debris?
user avatar
3 votes
0 answers
106 views

How much lead (kg) would you need to survive for an extended period of time in Jupiter’s radiation belts?

Imagine you have a 1 by 1 by 2 meter chamber that a human needs to survive in for one year, while orbiting in Jupiter’s radiation belts. How much lead, in weight, would have to surround the chamber to ...
ThatDemoGuy's user avatar
3 votes
1 answer
184 views

How to screen commercial electronics components for radiation tolerance

How would I actually go about qualifying COTS components for use in space, especially re radiation tolerance. I found some good stuff on the requirements for doing so, especially: How to test the ...
Paul Blase's user avatar
2 votes
1 answer
79 views

Where can I find citeable material on radiation shielding solutions utilized on different test missions?

I'm having a hard time finding citeable material on what different radiation shielding solutions different test missions have utilized. So far I've found that: SpectroCube only shields its most ...
Benjamin Åkerlund's user avatar
1 vote
1 answer
86 views

NASA CAPSTONE Radiation shielding

What solutions in radiation shielding or radiation effect mitigation were made on the NASA CAPSTONE mission? Specifically, anything related to radiation shielding is of interest. I'm having trouble ...
Benjamin Åkerlund's user avatar
5 votes
1 answer
388 views

For how long could astronauts stay on the surface of Europa, Jupiter's moon, with our current latest and most advanced spacesuit before dying?

Is it possible for astronauts to land on Europa safely? Given the fact that radiation level on Europa is about 5.4 Sv (or about 540 rem) per day and the temperature is around -260 °F (or about -160 °C)...
ZanMoon-chan's user avatar
3 votes
1 answer
93 views

Secondary radiation on the moon? (reference request)

I am studying the radiation environment on the moon and would like to read about how secondary radiation has been measured, simulated or even estimated for the lunar surface. Has this been done? If so,...
Saturn V's user avatar
  • 1,345
2 votes
0 answers
243 views

Are there already spacecraft equipped with RAD5500 processors?

Just stumbled across RAD750s successor, the RAD5500. Are there already spacecraft using this Chip, or are there plans for this chip? Looks pretty new!
RAD6000's user avatar
  • 1,178
3 votes
2 answers
140 views

How much solar radiation hits a spacecraft in transit to Mars?

How can I solve for the amount of radiation that hits a Mars transit vehicle, in transit? What formulas should I use? I am mostly focused on solar radiation.
Ethan's user avatar
  • 31
1 vote
1 answer
192 views

Good solar absorptivity and infrared emissivity values for non-anodized machined aluminum

Existing sources that I'm looking at show a wide range of possible absorptivity/emissivity values for aluminum: http://www.solarmirror.com/fom/fom-serve/cache/43.html https://www.thermoworks.com/...
D. Hodge's user avatar
  • 165
1 vote
0 answers
20 views

How to model the kinematics of gases expelled from comets and planetary atmospheres? [closed]

Once the ices of comets sublimate, where do they move to, and with which equations do you describe their motion in the interplanetary medium? Similarly, where do the gases that are stripped from the ...
Astrolien's user avatar
  • 569

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