Subscribe free to our newsletters via your
  Energy News  




Subscribe free to our newsletters via your




















ENERGY TECH
Zig-zagging device focuses high-energy radiation emissions
by Staff Writers
Washington DC (SPX) Jun 16, 2017


Just a pretty picture

There's no substitute for using the right tool for the job at hand. Using low-energy radiation sources simply isn't suitable for certain tasks: equipment used in cancer treatment requires a strong, monochromatic source of radiation to produce hard X-rays. Other similar radiation sources find applications in nuclear waste processing.

To design devices that steadily emit a specific type of radiation, physicists use a special kind of crystal, referred to as a crystalline undulator. In a recent study published in EPJ D, a team has demonstrated the ability to control radiation emissions from a particle travelling through such a device.

Tobias Wistisen from Aarhus University, Denmark, and colleagues have shown how to manipulate the emitted radiation by selecting a combination of incoming particle charge and energy, oscillation amplitude and period of the undulator's crystalline lattice.

These undulator devices force a penetrating charged particle to radiate, by using crystal deformations to initiate a zig-zagging trajectory. In the new study, Wistisen and colleagues present their experimental findings on radiation produced by incoming electrons with high energy (855 MeV) in a silicon-germanium crystalline undulator that is approximately 10 times thicker than the previously available one.

Traditional undulators have magnets that are on the order of 1 cm long, which translates directly into the energy of the emitted radiation, which is typically soft x-rays (1-10 keV). By comparison the undulators in this study have crystal deformations of approximately 40 nm in length, producing a radiation level that is roughly 10,000 higher: 10-50 MeV.

As part of this study, the authors then performed theoretical simulations which proved consistent with the observable radiation detected in their experimental setup.

R T.N. Wistisen, U.I. Uggerhoj, J. Lundsgaard Hansen, W. Lauth and P. Klag (2017), Radiation collimation in a thick crystalline undulator, European Physical Journal D 71:124, DOI: 10.1140/epjd/e2017-70720-y

ENERGY TECH
Scientists propose new method to correct common power problem in microgrids
Beijing, China (SPX) Jun 08, 2017
Scientists from the Northeastern University, China, have developed a new method to diagnosis a serious electrical problem in microgrids. They published their work in IEEE/CAA Journal of Automatica Sinica (JAS), a joint publication of the Institute of Electrical and Electronic Engineers (IEEE) and the Chinese Association of Automation. Microgrids are island-like pods of power generation wit ... read more

Related Links
Springer
Powering The World in the 21st Century at Energy-Daily.com

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

ENERGY TECH
Low-carbon trajectory is the only option, European leaders say

Divestment streak continues for British energy company Centrica

New ultrathin material for splitting water could make hydrogen production cheaper

Keeping the hydrogen coming

ENERGY TECH
New efficient, low-temperature catalyst for hydrogen production

Deceleration of runaway electrons paves the way for fusion power

Battery improvements spark HEV EV market breakthrough

Clean energy stored in electric vehicles to power buildings

ENERGY TECH
Thrive Renewables delivers mezzanine funded wind farms in Scotland

It's a breeze: How to harness the power of the wind

ADB: Asia-Pacific growth tied to renewables

GE Energy Financial Services Surpasses $15 Billion in Renewable Energy Investments

ENERGY TECH
Photopower for microlabs

Freshwater from salt water using only solar energy

Using sunlight to the max

NRL Issued Patent for Solar Microbial Fuel Cell

ENERGY TECH
Toshiba delays results again citing US nuclear unit

Russia sells stake in Akkuyu nuclear plant project in Turkey

S. Korea to scrap all plans to build new nuclear reactors

Japan court clears way for nuclear reactor restarts

ENERGY TECH
Corn better used as food than biofuel

Discovery could lead to sustainable ethanol made from carbon dioxide

Researchers produce biofuel for conventional diesel engines

Scientists make plastic from sugar and carbon dioxide

ENERGY TECH
Dallas Fed upbeat, but sees risk from lower oil prices

Anger in Nigeria's south over oil spill clean-up delay

Alaska critical to U.S. energy strategy, federal government says

Oil prices showing clear signs of daily gains

ENERGY TECH
NASA-MIT Study Evaluates Efficiency of Oceans as Heat Sink, Atmospheric Gases Sponge

OECD: Air pollution, urbanization offsetting gains in renewables

Climate change more important than partisan politics: Schwarzenegger

Starvation looms as food runs out in drought-hit Ethiopia




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement