Navigation Links
New technology sharpens X-ray vision
Date:1/20/2008

This release is available in French and German.

Researchers at the Paul Scherrer Institute (PSI) and the EPFL in Switzerland have developed a novel method for producing dark-field x-ray images at wavelengths used in typical medical and industrial imaging equipment.

Dark-field images provide more detail than ordinary x-ray radiographs and could be used to diagnose the onset of osteoporosis, breast cancer or Alzheimers disease, to identify explosives in hand luggage, or to pinpoint hairline cracks or corrosion in functional structures.

Up until this point, dark-field x-ray imaging required sophisticated optics and could only be produced at facilities like the PSIs 300m-diameter, $200 million synchrotron. With the new nanostructured gratings described in this research, published online January 20 in Nature Materials, dark-field images could soon be produced using ordinary x-ray equipment already in place in hospitals and airports around the world.

Unlike traditional x-ray images, which show a simple absorption contrast, dark-field images capture the scattering of the radiation within the material itself, exposing subtle inner changes in bone, soft tissue, or alloys. The overall clarity of the images is striking. The improved sensitivity in measuring bone density and hairline fractures could help diagnose the onset of osteoporosis. Because cancer or plaque cells scatter radiation slightly differently than normal cells, dark-field x-ray images can also be used to explore soft tissue, providing safer early diagnosis of breast cancer or the plaques associated with Alzheimers disease.

Security screening equipment equipped with dark-field image capability could better identify explosives, whose micro-crystalline structures strongly scatter x-ray radiation. And because x-rays penetrate a material without damaging it, dark-field images could help reveal scattering-producing micro-cracks and corrosion in structures such as airplane wings or the hulls of boats.

Researchers have been working on dark-field x-ray images for many years, explains Franz Pfeiffer, a professor at EPFL and researcher at the PSI. Up until now these images have only been possible using sophisticated crystal optical elements. Crystal optics, however, only work for a single x-ray wavelength and thus are highly inefficient. Our new technique uses novel x-ray optical components, in the form of nanostructured gratings, that permit the use of a broad energy spectrum, including the standard range of energies in traditional x-ray equipment used in hospitals or airports, adds Christian David, Pfeiffers colleague at PSI. This opens up the possibility for adapting current imaging equipment to include dark-field imaging.

Pfeiffer plans to collaborate with the Center for Biomedical Imaging (CIBM), a joint center with the Universities of Lausanne and Geneva and their associated hospitals, to develop an adaptation for existing medical equipment. When combined with the phase contrast imaging technique that we developed in 2006, we now have the possibility of providing the same range of imaging techniques in broad-spectrum x-ray imaging that we do with visible light.


'/>"/>

Contact: Franz Pfeiffer
franz.pfeiffer@epfl.ch
41-763-201-045
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert  

Related biology news :

1. Yale scientists use nanotechnology to fight E. coli
2. Voice Biometrics Gains Traction as Most Accurate and Convenient Technology to Secure Customer Privacy
3. M2SYS Partners with SecuGen Corporation to Support Market Leading Hamster Plus Fingerprint Reader with Auto-On Technology
4. Silicon Valley Technology Leaders LaserCard Corporation and Tesla Motors Sign LaserPass Secure Access Deal
5. Nanotechnology: Whats that?
6. UCs NIH grant brings technology from outer space to playgrounds
7. BIO-key(R) International to Showcase Deployed Biometric Security Applications at 2007 Biometric Technology Expo
8. Cogent Systems and Northrop Grumman Reach Agreement to Settle Automated Fingerprint Identification Technology Suit and Create Strategic Alliance
9. UCLA/VA partners with ASU to advance biosensor technology for urinary tract infections
10. Herr receives Heinz Award for Technology, the Economy and Employment
11. Singapore National Science and Technology Awards
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New technology sharpens X-ray vision
(Date:5/16/2017)... 2017  Veratad Technologies, LLC ( www.veratad.com ), an ... identity verification solutions, announced today they will participate as ... 15 thru May 17, 2017, in Washington ... Center. Identity impacts the lives of ... quickly evolving digital world, defining identity is critical to ...
(Date:4/18/2017)... Calif. , April 18, 2017  Socionext Inc., a global ... of a media edge server, the M820, which features the company,s ... recognition software provided by Tera Probe, Inc., will be showcased during ... at the NAB show at the Las Vegas ... ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... grow at a CAGR of 30.37% during the period 2017-2021. ... prepared based on an in-depth market analysis with inputs from industry ... over the coming years. The report also includes a discussion of ...
Breaking Biology News(10 mins):
(Date:7/26/2017)...  Nurse practitioners play a crucial role in helping patients ... Merck Manuals survey released today. The survey of 210 ... (88 percent) believe they spend at least half of appointment ... ... Manuals survey of 210 nurse practitioners finds that 78% of ...
(Date:7/25/2017)... ... July 25, 2017 , ... ... Executive Director of Strategic Planning. His extensive background in consulting, development and ... experience encompasses marketing and differentiation consulting, business strategy development, new product marketing ...
(Date:7/24/2017)... MA (PRWEB) , ... July 24, 2017 , ... Charm ... has been accepted by the National Conference on Interstate Milk Shipments (NCIMS) Laboratory Committee ... Pilot Program, set to launch July 1, 2017. , The NCIMS voted at its ...
(Date:7/24/2017)... Bridgewater, New Jersey (PRWEB) , ... July 24, ... ... identifies staffing firms across the US and Canada who have proven their superior ... 2017 assessment, Inavero identified Spearhead Staffing as an industry leader based on service ...
Breaking Biology Technology: