Navigation Links
Improved X-ray microscopic imaging
Date:2/6/2013

This release is available in German.

X-ray microscopy requires radiation of extremely high quality. In order to obtain sharp images instrument and sample must stay absolutely immobile even at the nanometer scale during the recording. Researchers at the Technische Universitaet Muenchen and the Paul Scherrer Institute in Villigen, Switzerland, have now developed a method that relaxes these hard restrictions. Even fluctuations in the material can be visualized. The renowned journal Nature now reports on their results.

For more than 100 years radiography meant: don't move! In order to visualize nanostructures such as biological cells, the porous structure of cement or storage fields of magnetic disks, the experimentators had to avoid any kind of vibration of X-ray microscope and sample. In addition, only a small percentage fraction of the incoming X-ray radiation could be used. Using special filters, they had to select exactly the fraction with the right properties for example, the right wavelength.

Contributions of different wavelengths separated

Pierre Thibault of the Technische Universitaet Muenchen and Andreas Menzel, scientist at the Paul Scherrer Institute (Villigen, Switzerland) have now developed an interpretation method that produces reliable images in spite of vibrations or fluctuations. The method is based on a technique called "ptychography", developed in the 1960s for electron microscopy. Thibault and Menzel's advancements now make it possible to distinguish effects originating from the contribution of different types of X-ray waves.

Fluctuations visualized

Probably the most significant result of the study is that it gives access to a whole class of objects that previously could hardly be investigated. "We now not only can compensate for the vibrations in the microscope," says Andreas Menzel. "We can even characterize fluctuations of the sample itself, even if they are much too fast to be seen with individual snapshots."

"We needed to convince ourselves that the images we produced did indeed reflect accurately the samples and their dynamics," says Pierre Thibault. "So we carried out computer simulations. They confirmed that effects of the instrument as well as of the sample itself, such as flows, switching events or mixed quantum states, can be characterized."

Microscopic view inside

The new method combines the characterization of dynamical states with high-resolution X-ray microscopy. One possible application is to analyze the changing magnetization of individual bits in magnetic storage media with high storage density. The interactions of such single magnetic bits or their thermal fluctuations, which ultimately determine the lifetime of magnetic data storage, could be visualized.

"In addition to its use in imaging," explains Pierre Thibault, "our analysis method also reveals a fundamental relationship to other disciplines: Microscopy and scientific disciplines such as quantum computing, previously regarded as independent, can benefit from each other here."


'/>"/>

Contact: Andreas Battenberg
battenberg@zv.tum.de
49-892-891-0510
Technische Universitaet Muenchen
Source:Eurekalert  

Related biology news :

1. Improved Authentication and Confidentiality Protection. ICAP Patent Brokerage Announces for Auction Important Patents in Data Encryption and Document Security
2. Some improved cookstoves may emit more pollution than traditional mud cookstoves
3. Improved loblolly pines better for the environment, study finds
4. Early detection techniques offer hope for improved outcomes in lung cancer patients
5. Trial seeks improved lung-cancer screening by combining imaging and biomarkers
6. A trained palate: Understanding complexities of taste, smell could lead to improved diet
7. How alert hospital employees improved hospitals MSRA infection rate
8. 3-D motion of cold virus offers hope for improved drugs using Australias fastest supercomputer
9. Ship-borne measurements show EU policies have improved air quality in harbors
10. Glass offers improved means of storing UKs nuclear waste
11. Nutrition tied to improved sperm DNA quality in older men
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Improved X-ray microscopic imaging
(Date:3/2/2017)... 2, 2017 Australian stem cell and regenerative ... has signed an agreement with the Monash Lung Biology ... Discovery Institute and Department of Pharmacology at Monash University, ... preclinical study to support the use of Cymerus™ mesenchymal ... Asthma is a chronic, long term lung ...
(Date:2/27/2017)... --  Strategic Cyber Ventures , the industry,s first cybersecurity ... million investment in  Polarity , the first commercial human ... based and is led by cybersecurity veterans Tom ... Gula , also a longtime cybersecurity veteran and founder ... A round of funding. This new funding will be ...
(Date:2/21/2017)... LONDON , February 21, 2017 ... um 70 Millionen US-Dollar wachsen. Nach einem Gespräch mit mehr ... es einige Hindernisse zu überwinden gilt, um diese Prognose ... ... unter anderem die Mobilisierung der finanziellen Mittel für die ...
Breaking Biology News(10 mins):
(Date:3/24/2017)...   Sienna Biopharmaceuticals, Inc. , a privately held, ... Richard Peterson will join the company as ... who brings more than two decades of global financial ... retiring at the end of April but will continue ... Sienna from Novan, Inc., where he served as Chief ...
(Date:3/23/2017)... Research and Markets has announced the addition of the ... ... The Global Market for Bioproducts Should Reach $714.6 Billion by ... 8.9%, This research report quantifies the two ... segments: bio-derived chemicals, biofuels, pharmaceuticals (biodrugs and herbal/botanicals), biocomposite materials, ...
(Date:3/23/2017)... March 23, 2017  BioPharmX Corporation (NYSE MKT: ... the dermatology market, today reported financial results for ... and will provide an update on the company,s ... "We are pleased to report that ... BioPharmX," said President Anja Krammer. "We achieved key ...
(Date:3/23/2017)... New York , March 23, 2017 ... blood plasma products and derivatives market is fragmented due to the presence ... players, such as Proliant, Thermo Fisher , and Sigma-Aldrich, compete ... leader, these three companies, collectively, held more than 76% of this ... ...
Breaking Biology Technology: