Dec. 24, 2014
The United Kingdom will become the 12th member state of European XFEL, an international research facility that is currently under construction in the Hamburg area and will start user operation in 2017. The UK Minister for Universities and Science Greg Clark and the Science and Technology Facilities Council (STFC) announced that the United Kingdom will invest up to 30 M£ (about 38 M€) to become a full member. The European XFEL will produce extremely bright X-ray flashes that will allow scientists to investigate nanometre-scale structures, fast processes, and extreme states; take three-dimensional pictures of viruses and proteins; and film chemical reactions.
moreDec. 09, 2014
An international team, including scientists from DESY, has caught a light sensitive biomolecule at work with an X-ray laser. The study proves that X-ray lasers can capture the fast dynamics of biomolecules in ultra slow-motion, as the scientists led by Prof. Marius Schmidt from the University of Wisconsin-Milwaukee write in the journal Science. "Our study paves the way for movies from the nano world with atomic spatial resolution and ultrafast temporal resolution", says Schmidt.
moreSep. 30, 2014
A novel X-ray technique developed for studying battery failures points to the potential next step in extending lithium ion battery lifetime and capacity, opening a path to wider use of these batteries in conjunction with renewable energy sources. Lithium ion batteries power mobile devices and electric cars and help to store energy from renewable, yet intermittent sources of energy such as wind and solar. But many cycles of charging and discharging lead to battery failures and capacity loss, limiting their useful life.
moreSep. 22, 2014
Reaearchers from Göttingen in collaboration with colleagues from Augsburg have 'filmed' the movement of lipid molecules using an X-ray stroboscope at DESY. In the scientific journal Physical Review Letters, researchers lead by Professor Tim Salditt of the University of Göttingen report that their study offers new insights into the dynamics of biomolecules, which compose materials such as cell membranes. The cell membranes consist of a double layer of lipid molecules; the properties of the membranes are of great interest because they control which substances enter and exit a biological cell and also determine which materials are exchanged between different cell regions.
moreAug. 26, 2014
Robert Candler, assistant professor of electrical engineering at the UCLA Henry Samueli School of Engineering and Applied Science, has received a $1 million reserach grant from the W.M. Keck Foundation to develop an ultra-compact X-ray free electron laser.
moreJul. 22, 2014
X-Ray phase-contrast imaging can provide high-quality images of objects with lower radiation dose. But until now these images have been hard to obtain and required special X-Ray sources whose properties are typically only found at large particle accelerator facilities. Using a laboratory source with unprecedented brightness, scientists from the Technische Universität München (TUM), the Royal Institute of Technology in Stockholm (KTH) and University College London (UCL) have demonstrated a new approach to get reliable phase contrast with an extremely simple setup.
moreJun. 23, 2014
Physicists at HZB have developed a process to generate improved lenses for X-ray microscopy that provide both better resolution and higher throughput. To accomplish this, they fabricate three-dimensional X-ray optics for volume diffraction that consist of on-chip stacked Fresnel zone plates. These three-dimensional nanostructures focus the incident X-rays much more efficiently and enable improved spatial resolution below ten nanometres. Results have been published in the journal Nano Research.
moreApr. 29, 2014
Researchers at the London Centre for Nanotechnology have determined the structure of DNA from measurements on a single molecule using atomic force microscopy, and found that this structure is not as regular as one might think. Results have been published in the journal Small.
moreFeb. 07, 2014
When thin films of ferroelectric materials are grown on single-crystal substrates, they can develop regions of aligned polarization - called "domains" - that often adopt complex patterns. Manipulation of ferroelectric domains can lead to advances in a number of technologies. However, in order to manipulate the domains, it is important to study their natural development. Previous studies have shown that interfacial strain and electrical boundary conditions play a large role. Accurate measurements of the local polarization can help science learn more. By changing the properties of the substrate and the interfaces of the ferroelectric materials, one can control the size and shape of the domains and thus influence the behavior of the material.
moreOct. 22, 2013
A unique colour X-ray camera went into operation at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR). With this camera, it will be possible for the researchers at the Helmholtz Institute Freiberg for Resource Technology (HIF), a part of the HZDR, to determine within a very short period of time the concentrations of such very finely dispersed metals as rare earth elements in ore minerals. The scientists celebrated the start of the camera's routine operation together with colleagues, partners, and companies who participated in the assembly of the camera. It was developed specifically to meet the institute's analytical requirements.