The first measuring period for external users at the new X-ray radiation source VUV-FEL at DESY in Hamburg has been successfully concluded. Since its official startup in August 2005, a total of 14 research teams from ten countries have carried out first experiments using the facility’s intense laser beam. “Both the external researchers and the DESY team gained most valuable experience with the new machine,” DESY research director Professor Jochen Schneider comments. “As a worldwide unique pioneering facility for free-electron lasers for the generation of X-ray radiation, the VUV-FEL for example offers completely new possibilities to trace various processes on extremely short time scales. The currently made first studies verify that these X-ray sources of the future will open another fascinating window for research.”
The free-electron laser VUV-FEL is the worldwide first and until 2009 the only source of intense laser radiation in the ultraviolet and the soft X-ray range. The 300-meter-long facility at DESY generated laser flashes with a wavelength of 32 nanometers (billionths of a meter) for the first time in January 2005 – this is the shortest wavelength ever achieved with a free-electron laser. Since its official startup as a user facility in August 2005, the VUV-FEL has been at the disposal of research groups from all over the world for experiments in areas such as cluster physics, solid state physics, plasma research and biology. Four experimental stations are currently available, at which different instruments can be operated alternately.
“The VUV-FEL is an absolute novelty: for the first time, experiments with intense, pulsed laser radiation can now be carried out at these short wavelengths,” explains DESY physicist Josef Feldhaus, who is in charge of the coordination of the experiments at the VUV-FEL. “The researchers are thus venturing into completely uncharted terrain, of which nobody has any experience yet.” Most groups therefore came to Hamburg with newly constructed instruments that were specially designed to fit the unique properties of the VUV-FEL radiation. With great success: “Despite the complexity of the new experimental equipment and the teething troubles of a completely new radiation source that is not yet running stably on a routine basis, most of the groups were very satisfied. They went home with discs full of data, which they are now evaluating in detail.”
Petra Folkerts | alfa
Unraveling the nature of 'whistlers' from space in the lab
15.08.2018 | American Institute of Physics
Early opaque universe linked to galaxy scarcity
15.08.2018 | University of California - Riverside
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
15.08.2018 | Physics and Astronomy
15.08.2018 | Earth Sciences
15.08.2018 | Physics and Astronomy