Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > 'Watching atoms move' is goal of powerful new X-ray sources, says CU's Joel Brock in Science article

Abstract:
When excited, atoms move at impossibly small length and time scales -- too small and too fast to have been observed in years past.

But as applied and engineering physics professor Joel D. Brock comments in the Feb. 2 issue of Science, a new generation of X-ray sources is allowing scientists to watch atoms move.

'Watching atoms move' is goal of powerful new X-ray sources, says CU's Joel Brock in Science article

Ithaca, NY | Posted on February 6th, 2007

In his short paper, "Watching Atoms Move," Brock explains how scientists' understanding of matter is changing. The paper describes an international research collaboration based on a prototype X-ray machine at Stanford University.

Though not involved in the Stanford research, Brock is part of a Cornell team that is jockeying for leadership in this X-ray technology by building an Energy Recovery Linac (ERL). Still in design stages, the ERL would perform similar tasks but with more frequent X-ray pulses.

Brock's Science article concerns a group of 38 researchers led by D.M. Fritz of Stanford who, in the same issue, report on observations of oscillating atoms in an excited bismuth crystal, using a high-energy X-ray free-electron laser (XFEL). The XFEL prototype, called the Sub-Picosecond Photon Source (SPPS), was used to observe the atoms' motion and is the predecessor to a much larger machine, yet to be built at Stanford, the Linear Coherent Light Source (LCLS).

Cornell's ERL project is also in the beginning stages and would perform similar tasks, but with more frequent X-ray pulses. The university has garnered about $18 million in support from the National Science Foundation, as well as $12 million from New York state for preliminary work. The entire project, among the most ambitious undertaken at Cornell, would amount to a $300 million to $400 million investment.

The ability to observe and document the atomic activities, a domain of research known as sub-picosecond science, is now holding promise with the advent of linear accelerator based X-ray sources, which produce shorter-than-ever pulses, Brock said.

He explained that while the XFEL at Stanford would pulse about 100 times per second, Cornell's ERL could pulse as fast as 1 billion times per second.

The machines are used for different kinds of experiments, but both belong to the new generation of X-rays sources for observing atomic activity.

"These new machines are magnificent," Brock said. "They're mind-boggling in what they'll be able to do."

Brock said that the potential applications in other fields, such as chemistry or biology, are enormous. For example, traditional X-ray diffraction technology has long allowed scientists to observe viruses, but through snapshots only -- still pictures, limited by the speed of the X-rays.

Using the greatly improved X-ray sources, scientists could someday watch a virus move, see how it grabs on to a cell, and discover why it is harmful. That observation could lead to processes by which to disable the virus.

"We've seen the snapshot," Brock said. "Now let's see the movie."

####

About Cornell University
The strategic plan for research at Cornell can be summed up simply: Be the best at what we undertake to do. The research enterprise supports university research priorities: the New Life Sciences; cross-college collaborations; and enabling research areas--computing and information sciences, genomics, advanced materials, and nanoscience. We build on our strengths when creating programs, recruiting faculty, purchasing equipment, and supporting interdisciplinary programs. Cornell research is committed to knowledge transfer and engages in technology transfer and economic development activities that benefit local, regional, national, and international constituents.

For more information, please click here

Contacts:
Cornell Chronicle:
Anne Ju
(607) 255-9735


Media Contact:
Press Relations Office
(607) 255-6074

Copyright © Cornell University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Nanomedicine

These microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel method to build microscopic robots with complex shapes and functionalities August 26th, 2015

Glitter from silver lights up Alzheimer's dark secrets August 25th, 2015

Cervical cancer detection goes portable August 25th, 2015

Antibacterial Nanocomposite Prevents Transmission of Infectious Diseases August 24th, 2015

Discoveries

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

These microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel method to build microscopic robots with complex shapes and functionalities August 26th, 2015

Researchers combine disciplines, computational programs to determine atomic structure August 26th, 2015

Announcements

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

National Space Society Welcomes Janet Ivey As New NSS Governor: Janet Ivey of Janet's Planet is NOW IN ORBIT as a member of the Board of Governors of the National Space Society August 27th, 2015

Tools

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

Nanometrics to Participate in the Citi 2015 Global Technology Conference August 26th, 2015

50 Years of Scanning Electron Microscopy from ZEISS: ZEISS celebrates the birth of the first commercial scanning electron microscope in 1965 August 26th, 2015

Announcing Oxford Instruments and School of Physics signing a Memorandum of Understanding August 26th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic