Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Nanotechnologists Gain Powerful New Materials Probe

Top view of the MACS multiaxis detector system (seen before being enclosed in shielding material). With more neutrons striking the sample and more detectors surrounding it, MACS will greatly extend the capabilities of neutron inelastic scattering as a materials probe technique in nanotechnology and basic science. Principal investigator Collin Broholm of the Johns Hopkins University is seen examining the alignment of one of the 20 detection channels.

Copyright: Robert Rathe
Top view of the MACS multiaxis detector system (seen before being enclosed in shielding material). With more neutrons striking the sample and more detectors surrounding it, MACS will greatly extend the capabilities of neutron inelastic scattering as a materials probe technique in nanotechnology and basic science. Principal investigator Collin Broholm of the Johns Hopkins University is seen examining the alignment of one of the 20 detection channels.

Copyright: Robert Rathe

Abstract:
Researchers at the National Institute of Standards and Technology (NIST) and The Johns Hopkins University have constructed a unique tool for exploring the properties of promising new materials with unprecedented sensitivity and speed—potentially allowing them to identify quickly those most useful for nanotechnology and industrial applications.

Nanotechnologists Gain Powerful New Materials Probe

GAITHERSBURG, MD | Posted on February 25th, 2009

This novel instrument, called the Multi-Axis Crystal Spectrometer (MACS), is a variation on several other spectrometers at the NIST Center for Neutron Research (NCNR), where MACS is located. Like them, MACS bombards a sample of material with low-energy neutrons, which then bounce off the sample's constituent atoms in specific directions and with specific velocities that reflect the arrangement of atoms within the material. Analyzing how neutrons scatter from a sample can tell scientists a great deal about the material's physical properties, but older spectrometers are limited to relatively large samples and offer less range in the conditions under which they can be tested.

"These limitations are problematic in nanotechnology," says Professor Collin Broholm of the Johns Hopkins University, "because oftentimes you grow a new material as a tiny crystal weighing only four or five milligrams, and then you want to see how it behaves under, say, an intense magnetic field."

Not only can MACS overcome these limitations, but its unique construction allow has additional advantages. Many spectrometers provide just a single "channel" for detection, whereas MACS offers 20, forming a semicircle behind the sample—an arrangement that leads Broholm to compare MACS to a wide-angle, high-resolution lens. These improvements mean that MACS could become a favorite tool for scientists who must choose—and choose quickly—what material to grow next.

"With previous instruments for inelastic scattering from magnetic materials, 80 milligrams is about the smallest sample you can work with," Broholm says. "But with MACS, we might be able to get detailed information about magnetic interactions even from a nano-structured thin film sample. These are the sort of interactions that nanotechnologists are trying to take advantage of when they design and shape things at the nanoscale."

Broholm's team is still fine-tuning MACS and expects to issue a full call for proposals to use the new spectrometer in about six months. Additional information on the NIST Center for Neutron Research www.ncnr.nist.gov/, a national user facility, is available on the facility's Web site, including a list of available instruments at www.ncnr.nist.gov/instruments/. MACS is supported by the National Science Foundation.

####

About NIST
Founded in 1901, NIST is a non-regulatory federal agency within the U.S. Department of Commerce. NIST's mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

For more information, please click here

Contacts:
Chad Boutin

(301) 975-4261

Copyright © NIST

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

News and information

Conductive Inks: booming to $2.8 billion by 2024 April 17th, 2014

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Govt.-Legislation/Regulation/Funding/Policy

Novel stapled peptide nanoparticle combination prevents RSV infection, study finds April 17th, 2014

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

'Life Redesigned: The Emergence of Synthetic Biology' Lecture at Brookhaven Lab on Wednesday, April 30: Biomedical Engineer James Collins to Speak for BSA Distinguished Lecture Series April 16th, 2014

Announcements

More effective kidney stone treatment, from the macroscopic to the nanoscale April 17th, 2014

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Tools

More effective kidney stone treatment, from the macroscopic to the nanoscale April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

Aerotech X-Y ball-screw stage for economical high performance Planar positioning April 16th, 2014

Malvern reports on the publication of the 1000th peer-reviewed paper to cite NanoSight’s Nanoparticle Tracking Analysis, NTA April 16th, 2014

Alliances/Partnerships/Distributorships

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Peer Reviewed and Approved for Science by the the Washington Academy of Sciences April 3rd, 2014

New JEOL-Nikon MiXcroscopy Correlative Imaging Solution March 27th, 2014

Quantum Dots Take Center Stage at Inaugural Event: QD Vision Co-Founder and CTO Dr. Seth Coe-Sullivan to Chair First Quantum Dots Forum, March 26, 2014, San Diego, CA March 25th, 2014

Research partnerships

Novel stapled peptide nanoparticle combination prevents RSV infection, study finds April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

Scalable CVD process for making 2-D molybdenum diselenide: Rice, NTU scientists unveil CVD production for coveted 2-D semiconductor April 8th, 2014

Carbon nanotubes grow in combustion flames April 1st, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE