NASA's New Radiation Shielding First Proposed By John W. Campbell In 1936
NASA engineers are working on a clever new idea for shielding astronauts from cosmic rays. If you put the tanks containing the fuel and water needed for the journey on the outside of the living space, they can be used for shielding. Just like science fiction writer John W. Campbell first proposed in 1936.
(From Shields Up! New Radiation Protection for Spacecraft and Astronauts)
Richard Wilkins, director of NASA's Center for Applied Radiation Research at Prairie View A & M University in Texas has conducted a study into liquid shield approaches. As he puts it
"In most [mission] scenarios, you need liquid hydrogen for fuel and you need water. And these are all considered materials that are particularly good for cosmic ray shielding."
The tests demonstrate that the atoms of liquid hydrogen provide an excellent screen against cosmic rays; they don't fragment into secondary particles like heavier elements (as would be the case with lead shielding). And the radiation from secondary particles can be just as harmful.
In 1936, the protagonists of John W. Campbell's The Ultimate Weapon found themselves in need of good shielding from blasts of radiation:
"You mean they bathed that ship in neutrons?"
"Shot it full of 'em. Just like our proton guns, only sending neutrons."
"Well, why weren't we killed too?"
"Water stops neutrons," Kendall said. "Figure it out."
"The rocket-water tanks - all around us... that saved us?"
See Shields Up! New Radiation Protection for Spacecraft and Astronauts for more information. (Thanks to Winchell Chung for the story idea.)
Scroll down for more stories in the same category. (Story submitted 5/27/2004)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 6 )
Related News Stories -
SKYLON Space Plane Gets Boost
'They were more airplane than spaceship...'- Robert Heinlein, 1951.
Europe's Cheops To Look For Habitable Planets
'I was near enough it now to set my automatic astronomical instruments to searching it for a habitable planet.'- Edmond Hamilton, 1936.
SpaceX Dragon First Private Craft To Dock With ISS
'Why, the ship wasn't a proper deep-space craft at all.'- Robert Heinlein, 1941.
SpaceX Dragon To Land On Any Planet
A space craft should be able to 'land on its fins' and take off again, don't you think?
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Army's New Bird-Like Surveillance UAV
'The prototype blue-bellied, gray-backed tracer-bird with the wide-angle eye...'
Honda's Tumblebug - The UNI-CUB beta
'A tumblebug does not give a man dignity...'
NASA's LADEE Enters Lunar Orbit
'... dust normally on the surface picks up and keeps a charge.'
3D Printing An Entire Car
"... Almost as good as the original it was printed from."
Aldebaran Robot Talks Like C3PO - Almost
'See Vee Threepio - Vee for versatility - at your service...'
Google's Skin Tattoo Lie Detector
'Three and a half centimetres in diameter, permanently fixed in the centre of his forehead.'
inFORM Dynamic Shape Output Device
Like that pushpin device you remember, but supercharged.
Owlet Vitals, The Future Of Baby Monitoring
'In every diaper there is a fine copper wire...'
Robert Heinlein, Your Personal Electric Helicopter Will Be Ready In 2016
"They were half way home when a single flyer, hopping free in a copter harness, approached the little parade."
WildCat Runs Faster Than You, Untethered
'...moving with such drifting ease that it was like a single solid cloud of black-grey smoke blown at him in silence.' Almost.
HiBot's ACM-R5H Robot Video Shows Graceful Terminator-Style Swimming
'No! No! Aaaaaaarrrrrrgh!'
tDCS Jumpstarts Your Future
'We invented a scanner that can change the labyrinthine neural connections of the brain by tiny electronic impulses...'.
RealView Interactive Live Medical Holography
Surgeons can see an organ in its entirety in a live image.
Britney Spears And Lynn Minmay - Weapons Of Choice
An attack can take many forms.
Aireal Haptics Inching Towards Holodeck Experience
How to feel something that isn't there?
Starchase Pursuit Management ala Star Wars
Yes, but does it follow evil doers through hyperspace?
More SF in the News Stories
More Beyond Technovelgy science news stories