Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Active Electrostatic Radiation Shielding For Space Craft

NASA is actively soliciting proposals for developing and validating active electrostatic radiation shielding to be used for protecting astronauts and space habitats in long duration human space missions.

The idea of using an electrostatic radiation shield has been around since at least the 1950's; an artist's conception of an electrostatic shield created from inflatable, conductive spheres about 5 meters across for a lunar base is shown below.


(Artistís concept of an electrostatic radiation shield
Image courtesy ASRC Aerospace. )

Rejecting passive shielding as too costly due to weight, NASA is looking carefully at active shielding this time.

Primary candidates for active shielding include but are not limited to: confined and unconfined magnetic fields requiring super-conducting magnets, plasma shields, and electrostatic shields. Recently, a journal publication (Adv. Space Res. 42 (2008) 1043) made a critical analysis and demonstrated why previous approaches of using electrostatic and magnetic radiation shielding were not feasible. Further it clearly established the feasibility proof-of-concept of electrostatic active shielding using the novel approach of quadruple configuration. The biggest advantage of active electrostatic radiation shielding is that by preventing ions from hitting the spacecraft, the unknown harmful biological effects of continuous long duration exposure to space radiation is significantly reduced (~ 70 %) for galactic cosmic rays (GCR) and for solar particle events (SPE), of great concern for radiation exposure, it is practically eliminated. It is believed that the best strategy for radiation protection and shielding for long duration human missions is to use electrostatic active radiation shielding while, in concert, taking the full advantage of the state-of-the-art evolutionary passive (material) shielding technologies for the much reduced and weaken radiation that may escape and hit the spacecraft.

SF fans have been treated to a variety of ideas relating to both active and passive shields on space craft. See the shield from Doc Smith's 1930 novel Skylark Three, the radiation shield from John W. Campbell's 1936 novel The Ultimate Weapon and the Langston Field from Niven and Pournelle's 1974 novel The Mote in God's Eye.

Update 05-May-2021: See also this very early idea for light weight shielding - the ozone radiation shield from A Daring Trip To Mars (1931) by Max Valier. End update.

From spaceref via @nyrath.

Scroll down for more stories in the same category. (Story submitted 3/19/2011)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Space Tech ")

First Ever Proof Of Water On Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.' - Raymond Z. Gallun, 1951.

Gigantic Space Sunshade Would Fight Global Warming
'...the light of the sun had been polarized by two crossed fields so that no radiation could pass.' - Arthur C. Clarke, 1953.

Untethered Spacewalk's 50th Anniversary
'But that space walk of mine wasn't so very amazing.' - Dom Passante, 1939.

ESA Designs Huge Inflatable Moonbase
'It was like being inside a balloon; indeed, that was exactly where he was.' - Arthur C. Clarke, 1961.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Ulm Sleep Pods For The Homeless
'The lid lifted and she crawled inside...'

Prophetic Offers Lucid Dreaming Halo With Morpheus-1 AI
''Leads trail away from insertion points on her face and wrist... to a lucid dreamer...'

More Like A Tumblebug Than A Motorcycle
'It is about the size and shape of a kitchen stool, gyro-stabilized on a single wheel...'

Tesla Camera-Only Vision Predicted In 1930's SF
'By its means, the machine can see.'

First Ever Proof Of Water On Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.'

Aptera Solar EV More Stylish Than Heinlein Steel Tortoise
'When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.'

Gigantic Space Sunshade Would Fight Global Warming
'...the light of the sun had been polarized by two crossed fields so that no radiation could pass.'

Untethered Spacewalk's 50th Anniversary
'But that space walk of mine wasn't so very amazing.'

ESA Designs Huge Inflatable Moonbase
'It was like being inside a balloon; indeed, that was exactly where he was.'

AlphaGarden Robot Cares For Gardens Better Than Humans
'...a simple clock-set servok with pipe and hose arms.'

Let's Make Slaver Sunflowers! Engineering Plants To Reflect Light
'The mirror-blossom was a terrible weapon.'

TeslaBot Uber Driver (2024) And The Automatic Motorist (1911)
'Robots have worse problems than anybody'

DiffuseBot Uses Generative AI To Invent New Soft Robots
'It embodies several small-scale multiple stampers, apparently for dealing with sheet metal.'

Philips Smart Palm Recognition Smart Deadbolt
'A palm lock must be keyed to one individual's hand shape...'

BMind Smart Mirror from Baracoda
Mirror, mirror, on the wall, who has the greatest wellness of all?

Ballie Your AI Robot Companion From Samsung
Projects your content anywhere you like.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.