Nano-Particle Field Extraction Thruster

A NanoFET - a nano-particle field extraction thruster uses nanoparticles as propellant. The "engine" is etched onto wafer-thin silicon; with fuel, it is about one centimeter thick. Tens of thousands of accelerators fit onto the area of a postage stamp. NanoFETs work like miniaturized versions of particle accelerators.

NanoFET is essentially a "stick-on" thruster that could power small spacecraft or devices over large distances for long space missions.


(NanoFET)

NanoFET systems can deliver up to ten times the thrust of an ion engine; they offer high efficiency, lower thruster specific mass and longer operational lifetimes. Since the nanoparticles are charged electrostatically rather than ionized as in ion or Hall thrusters, greater reliability and efficiency can be achieved. Without the need to ionize propellant, nanoFET does not experience charge exchange (CEX) collisions between high energy charged and slow moving neutral particles.

NanoFETs offer a wide span of thrust-to-power ratios at very high efficiency in a single package. This provides mission designers with a great deal of flexibility.

Once within the planetary bodyís gravity well, nanoFET could switch to a low-Isp, high thrust-to-power mode to provide greater thrust capability. This flexibility also provides a wider margin for both robotic and crewed missions to accommodate offnominal and abort scenarios, adjust the flight time, and perform dynamic retasking to take advantage of in-flight opportunities. To achieve comparable capabilities with other EP systems across the entire Isp range, multiple engine types would have to be used, which tends to increase the mass of the propulsion system while complicating spacecraft integration and design

From the conceptual standpoint, NanoFETs are miniaturized versions of sf writer Murray Leinster's pushpots, small rocket motors that could be attached to objects and push them into space. Bigger object? Attach more pushpots.

They seemed to land by hundreds, but their number was actually in dozens. It was not until the last one was down that Joe could make himself heard. The pushpots were jet motors in frames and metal skin, with built-in jato rocket tubes besides their engines. On the ground they were quite helpless. In the air they were unbelievably clumsy. They were actually balanced and steered by vanes in the blasts of their jets, and they combined the absolute maximum of sheer thrust with the irreducible minimum of flyability.

... A gigantic crane-truck came in through the wide doorway. It dangled a pushpot. It rolled over to the launching cage in which the spaceship lay and set the unwieldy metal object against that cage. There was a clank as the pushpot caught hold of the magnetic grapples. The crane went out again, passing a second crane carrying a second pushpot. The second beetle-like thing was presented to the cage. It stuck fast. The crane went out for more. (Read more about pushpots)

Read more at Next Big Future.

Scroll down for more stories in the same category. (Story submitted 7/10/2009)

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 ( 2 )

Related News Stories - (" Space Tech ")

Miners! NASA Wants To License RASSOR Excavator
'The borers had been dismantled and packed away.' - Ray Cummings, 1930.

Starshade Will Help Space Telescope To Search For Exoplanets
'When it found planetary systems in its field, automatically shifted upon them a higher powered telespectroscope ...' - Edmond Hamilton, 1936.

Yes, But Do Astrobees Have Lasers For Lightsaber Training?
'... Ancient weapons are no match for a good blaster at your side, kid.' - George Lucas, 1977.

Japan Uses Explosives On Asteroid
'...a tiny, rocket-powered projectile, drove towards the mysterious bulk. It hit, exploding into a cloud of incandescent vapour.' - EC Tubb, 1958.

 

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.

 

 

 

 

 

Current News

Miners! NASA Wants To License RASSOR Excavator
'The borers had been dismantled and packed away.'

Bee+ Robobee Now With Four Wings
'It was a tiny thing, scarcely more than an inch and a half in length...'

CNSILK Robotic Spider Builder
'We could certainly spin a web right through the Solar System, if we can think of a good use for one.'

Starshade Will Help Space Telescope To Search For Exoplanets
'When it found planetary systems in its field, automatically shifted upon them a higher powered telespectroscope ...'

Tiny LEDs Developed For Dust-Sized Computers
'They use sparkles to talk to each other...'

Is There Extraterrestrial Life Here In The Solar System
'How fast is it moving? ...one meter per minute.'

Can We Comprehend Deep Learning Systems?
'Youíve nothing remotely like it, so I canít describe it to you.'

Skin Electronics Can Show Electrocardiogram
'... the young men in the streets who applied polyimde OLED body film to their bared shoulders.'

Chinese Fern Helps Remediate Arsenic Soil
'Bioengeering had put out a spec report on the long crawly things five months back.'

Skai Air Taxi Costs The Same As Uber
'The air-taxi found its way past and around other ground-cars...'

Neurodevices For Consumers? Neuroethicists (And Philip K Dick) Say 'Caveat Emptor'
'They tried to use it today and it wouldn't work. No colors and no ceph patterns, neither one...'

NASA 3D Printed Habitat Challenge Won By AI SpaceFactory
3D printing - on Mars!

The Future Of Elon Musk's Neuralink
'Cerebral Electromagnetic Emmission Amplification and Relay System ó call it artificial telepathy, if you like.'

Researchers Make You Say Anything in Videos
'[It] caused his televised image... to mouth the vowels and consonants beautifully.'

Jeff Bezos Tries Waldoes (Robotic Hands)
'Waldo put his arms into the primary pair before him...'

Asimov and Musk - Boring Company Tunnel vs. Street Race
'There was almost no sound, just a steady velvety whirr as the taxi sped along.'

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.