Featured Research

from universities, journals, and other organizations

Trident Laser Accelerates Protons To Record Energies

Date:
November 3, 2009
Source:
American Physical Society
Summary:
An international team of physicists has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can now accelerate particles to extremely high velocities that would otherwise only be possible using large accelerator facilities. Physicists around the world are examining laser particle acceleration and laser produced radiation for potential future uses in cancer treatment.

Image of the infrared laser (not seen, entering from left-hand side) interacting with a flat target (center), and the associated plasma production from the interaction on the various diagnostic instruments in the chamber. This is a time integrated image over five seconds.
Credit: Joe Cowan and Kirk Flippo, LANL

An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can now accelerate particles to extremely high velocities that would otherwise only be possible using large accelerator facilities. Physicists around the world are examining laser particle acceleration and laser produced radiation for potential future uses in cancer treatment.

Related Articles


Experiments by Sandrine Gaillard, performed as part of her doctoral thesis which is supervised by Prof. Cowan, director of the Institute of Radiation Physics at the Forschungszentrum Dresden-Rossendorf (FZD), achieved world-record energies for laser accelerated particles. These record results were obtained in partnership with scientists at FZD, Sandia National Laboratories, the University of Nevada, Reno, and the University of Missouri, Columbia, all working at the Trident Laser Facility at the Los Alamos National Laboratory in New Mexico. Protons were accelerated to velocities of 254 million miles per hour (or 37% of the speed of light).

The new record was achieved using specially shaped targets at Trident, the world's highest contrast high-intensity, high-energy laser. The scientists shot high-contrast ultrashort laser pulses lasting approximately 600 femtoseconds (600 quadrillionths of a second) and around 80 Joules directly into the cone-shaped structures, whose flat-top tips are covered with a thin film. The surfaces were created using nanotechnology, and produced by the company Nanolabz.

When the intense laser light collides with the inside of these anvil-like microstructures, electrons are liberated from the material. In contrast to flat-foils, the microstructures act as an electron guide to the tip. The electric field generated can then be used to accelerate the protons to energies that were previously unachievable. X-ray imaging was used as a diagnostic tool to help illustrate and clarify the laser-cone interaction. The precise interactions, however, must still be resolved by the scientists via computer simulations. Next, they will study the cones ability to efficiently convert laser light into high energy protons.

The record measurements will be presented at the annual APS Division of Plasma Physics meeting in November 2009 in Atlanta, GA.


Story Source:

The above story is based on materials provided by American Physical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Physical Society. "Trident Laser Accelerates Protons To Record Energies." ScienceDaily. ScienceDaily, 3 November 2009. <www.sciencedaily.com/releases/2009/11/091102111828.htm>.
American Physical Society. (2009, November 3). Trident Laser Accelerates Protons To Record Energies. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2009/11/091102111828.htm
American Physical Society. "Trident Laser Accelerates Protons To Record Energies." ScienceDaily. www.sciencedaily.com/releases/2009/11/091102111828.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Touch-Free Smart Phone Empowers Mobility-Impaired

Touch-Free Smart Phone Empowers Mobility-Impaired

Reuters - Innovations Video Online (Dec. 21, 2014) A touch-free phone developed in Israel enables the mobility-impaired to operate smart phones with just a movement of the head. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Obama: Better Ways to Create Jobs Than Keystone Pipeline

Obama: Better Ways to Create Jobs Than Keystone Pipeline

AFP (Dec. 19, 2014) US President Barack Obama says that construction of the Keystone pipeline would have 'very little impact' on US gas prices and believes there are 'more direct ways' to create construction jobs. Duration: 00:47 Video provided by AFP
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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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