The operation of the beamlines at the SLS is split into three thematic areas:
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Friday, Friday, 13 December 2013 / Coffee 11:00 / Seminar 11:15 / WBGB/019
Contact Thomas Huthwelker (5314)
Gabriel Aeppli is an internationally recognized solid-state physicist with a broad interest. He is especially known for his spectroscopic work on magnetism of disordered systems and high-temperature superconductors, with a strong focus on neutron and photon diffraction studies as well as scanning tunneling spectroscopy. He has also developed an increasing interest in biological problems and their applications in the field of medicine. In recent years he has expanded his interests to the field of quantum information, where he focused his research on the realization of quantum bits in doped silicon. With the London Centre for Nanotechnology, he has built in a short time a leading science and technology center in the heart of London. For his scientific work, he has received several awards, including the Oliver Buckley Prize in 2005 and the Mott Prize in 2008.
We are delighted that Professor Aeppli will take over the management of the SYN department and we wish him success in his future career at PSI.
Prof. Dr. J. Friso van der Veen, Head of the SYN Department
17. November 2013Media Releases Biology Research Using Synchrotron Light Human Health
Botox is a highly dangerous toxin that causes paralysis. In cosmetic applications it is used to temporarily eliminate wrinkles and in medicine as a treatment for migraine or to correct strabismus. An international research team has now established how the toxin molecule binds to the neuron whose activity is then blocked by the poison. The findings may be useful for the development of improved drugs with a lower risk of overdosage.
12. November 2013Media Releases Research Using Synchrotron Light Materials Research Matter and Material
Above the transition temperature, some electrons in the superconducting material La1.77Sr0.23CuO4 behave as if they were in a conventional metal, others as in an unconventional one – depending on the direction of their motion. This is the result of experiments performed at the SLS. The discovery of this anisotropy makes an important contribution towards understanding high-temperature superconductors. The effect will also have to be taken into account in future experiments and theories of high-temperature superconductors.
24. October 2013Media Releases Medicine Human Health
A new mammography procedure that could generate substantial added value for the diagnosis of breast cancer in medical practice has just been published in the scientific journal “Investigative Radiology”. The method was developed at PSI in cooperation with the Certified Breast Centre at the Kantonsspital (cantonal hospital in) Baden and Philips as an industrial partner and is making the tiniest tissue changes visible. This has the potential to improve the early detection of breast cancer. Further studies in women suffering from breast cancer are to prove in a definitive manner the added value of the method.
17. October 2013Storage Research Using Synchrotron Light Materials Research User Experiments
Materials in lithium ion battery electrodes expand and contract during charge and discharge. These volume changes drive particle fracture, which shortens battery lifetime. A group of ETH and PSI scientists have quantified this effect for the first time using high-resolution 3D movies recorded using x-ray tomography at the Swiss Light Source.
16. October 2013Medienmitteilungen Forschung mit Synchrotronlicht Nutzerexperimente/Nutzerdienst Biologie
Mit Hilfe von Röntgenlicht aus der Synchrotron Lichtquelle Schweiz des PSI ist es Paläontologen der Universität Bristol gelungen, ein Rätsel um den Ursprung der ersten Wirbeltiere mit harten Körperteilen zu lösen. Sie haben gezeigt, dass die „Zähne“ altertümlicher Fische (der sogenannten Conodonten) unabhängig von den Zähnen und Kiefern heutiger Wirbeltiere entstanden sind. Die Zähne dieser Wirbeltiere haben sich vielmehr aus einem Panzer entwickelt, der dem Schutz vor den Conodonten, den ersten „Raubtieren“, diente.
30. August 2013Matter and Material Research Using Neutrons Research Using Synchrotron Light
Experiments conducted at the PSI have made it possible to determine how a unique Bronze Age axe was made. This was thanks to the process of neutron imaging, which can be used to generate an accurate three-dimensional image of an object’s interior. For the last decade, the PSI has been collaborating with various museums and archaeological institutions both in Switzerland and abroad. The fact that the 18th International Congress on Ancient Bronzes, which is to be held at the University of Zurich from 3 – 7 September, will also be meeting at the PSI for one day is a testament to the success of the cooperation.
5. May 2013Media Releases Matter and Material Materials Research Research Using Synchrotron Light
Scientists use nano-rods to investigate how matter assembles
To make the magnetic interactions between the atoms visible, scientists at the Paul Scherrer Institute PSI have developed a special model system. It is so big that it can be easily observed under an X-ray microscope, and mimics the tiniest movements in Nature. The model: rings made from six nanoscale magnetic rods, whose north and south poles attract each other. At room temperature, the magnetisation direction of each of these tiny rods varies spontaneously. Scientists were able to observe the magnetic interactions between these active rods in real time. These research results were published on May 5 in the journal “Nature Physics”.
22. April 2013Communiqués de presse Matière et matériaux Micro- et nanotechnologie Recherche sur les matériaux
Forscher des PSI und der ETH Zürich haben mit Kollegen vom Politecnico di Milano in der aktuellen Ausgabe der wissenschaftlichen Fachzeitschrift "Nature Photonics" eine Methode erarbeitet, einen Laser zu entwickeln, der schon bald in den neuesten Computern eingesetzt werden könnte. Damit könnte die Geschwindigkeit, mit der einzelne Prozessorkerne im Chip miteinander kommunizieren, drastisch erhöht werden. So würde die Leistung der Rechner weiter steigen.
Cette actualité n'existe qu'en allemand.
25. February 2013Media Releases
For the first time, experiments using computed tomography have allowed scientists to observe in 3D the flow of oil and water in real rock on an unprecedented scale. The new approach trailed and the information gathered by the experiments contribute to an improved understanding of multiphase flow and transport in porous media.
12. February 2013Media Releases Matter and Material Research Using Synchrotron Light
Scientists at the Paul Scherrer Institute, together with Chinese and German collaborators, have obtained new insights into a class of high-temperature superconductors. The experimental results of this fundamental research study indicate that magnetic interactions are of central importance in the phenomenon of high-temperature superconductivity. This knowledge could help to develop superconductors with enhanced technical properties in the future.
7. February 2013Media Releases
X-rays are used to investigate nanoscale structures of objects as varied as single cells or magnetic storage media. Yet, high-resolution images impose extreme constraints on both the X ray microscope and the samples under investigation. Researchers at the Technische Universität München the PSI now showed how to relax these conditions without loss of image quality. They further showed how to image objects featuring fast fluctuations, such as the rapid switching events that determine the life time of data storage in magnetic materials.
31. January 2013Media Releases Micro- and Nanotechnology Materials Research Matter and Material Research Using Synchrotron Light
Researchers from the Paul Scherrer Institute and the Indian Institute of Science Education and Research have been able to intentionally ‘switch off’ the magnetization of every second molecule in an array of magnetized molecules and thereby create a ‘magnetic nano-chessboard’. To achieve this, they manipulated the quantum state of a part of the molecules in a specific way.