Featured Research

from universities, journals, and other organizations

Wave power could contain fusion plasma

Date:
January 11, 2011
Source:
University of Warwick
Summary:
Researchers may have found a way to channel the flux and fury of a nuclear fusion plasma into a means to help sustain the electric current needed to contain that very same fusion plasma.

Researchers at the University of Warwick's Centre for Fusion Space and Astrophysics and the UK Atomic Energy Authority's Culham Centre for Fusion Energy, may have found a way to channel the flux and fury of a nuclear fusion plasma into a means to help sustain the electric current needed to contain that very same fusion plasma.

The researchers used large scale computer simulations to confirm a longstanding prediction by US researchers that high energy alpha particles born in fusion reactions will be key to generating fusion power in the next planned generation of tokamaks.

The Warwick and Culham researchers were modelling the interaction of particular types of waves with alpha particles in a fusion plasma when they found that an expected type of wave was forming naturally within the plasma and that it was quickly growing in strength. As the simulation progressed the wave began to transfer energy from alpha particles to make an electric current which could help confine the plasma.

This particular type of waves, LH (lower hybrid) waves, are in fact often used by fusion researchers to generate the electric current required to confine and control the plasma -- but these waves are usually generated externally to the plasma and channelled into it to create the current. The Warwick researchers' model suggests that in fact these waves will occur naturally in the plasmas of fusion reactors and in doing so may be able to help exploit the energy of alpha particles. This would open up far more efficient methods of creating and sustaining the current needed to confine the plasma and could provide a mechanism that would confirm earlier predictions by US researchers, that the energy of Alpha particles would be key to the development of fusion energy.

This work was only possible using the recently commissioned large scale computing facilities at the University of Warwick supported by EPSRC, in particular for theoretical work supporting fusion energy generation.

University of Warwick researcher Professor Sandra Chapman said: "These large scale computer simulations capture the plasma dynamics in unprecedented detail and have opened up an exciting new area."

This work is part of a significant initiative funded by the EPSRC (The Engineering and Physical Sciences Research Council) to support the science underpinning fusion energy in the UK.


Story Source:

The above story is based on materials provided by University of Warwick. Note: Materials may be edited for content and length.


Journal Reference:

  1. J. Cook, S. Chapman, R. Dendy. Electron Current Drive by Fusion-Product-Excited Lower Hybrid Drift Instability. Physical Review Letters, 2010; 105 (25) DOI: 10.1103/PhysRevLett.105.255003

Cite This Page:

University of Warwick. "Wave power could contain fusion plasma." ScienceDaily. ScienceDaily, 11 January 2011. <www.sciencedaily.com/releases/2011/01/110110053212.htm>.
University of Warwick. (2011, January 11). Wave power could contain fusion plasma. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2011/01/110110053212.htm
University of Warwick. "Wave power could contain fusion plasma." ScienceDaily. www.sciencedaily.com/releases/2011/01/110110053212.htm (accessed July 30, 2014).

Share This




More Matter & Energy News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
China's Drone King Says the Revolution Depends on Regulators

China's Drone King Says the Revolution Depends on Regulators

Reuters - Business Video Online (July 30, 2014) Comparing his current crop of drones to early personal computers, DJI founder Frank Wang says the industry is poised for a growth surge - assuming regulators in more markets clear it for takeoff. Jon Gordon reports. Video provided by Reuters
Powered by NewsLook.com
3Doodler Bring 3-D Printing to Your Hand

3Doodler Bring 3-D Printing to Your Hand

AP (July 30, 2014) 3-D printing is a cool technology, but it's not exactly a hands-on way to make things. Enter the 3Doodler: the pen that turns you into the 3-D printer. AP technology writer Peter Svensson takes a closer look. (July 30) Video provided by AP
Powered by NewsLook.com
Climate Change Could Cost Billions, According To White House

Climate Change Could Cost Billions, According To White House

Newsy (July 29, 2014) A report from the White House warns not curbing greenhouse gas emissions could cost the U.S. billions. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins