Today, on 5 December 2016, the Paul Scherrer Institute PSI held an inauguration ceremony for its new large-scale research facility SwissFEL, with Johann N. Schneider-Ammann, President of the Swiss Confederation, in attendance.
Clouds consist of tiny droplets. These droplets form when water condenses around so-called aerosols – small particles in the atmosphere. To understand how in turn aerosols come into existence scientists have now created a comprehensive computer model simulation based on profound experimental data. This simulation revealed that in addition to sulphuric acid, two other substances are crucially involved in the formation of aerosols: organic compounds and ammonia. These results have now been published in the renowned journal Science.
The material neodymium nickel oxide is either a metal or an insulator, depending on its temperature. The possibility to control this transition electrically makes the material a potential candidate for transistors in modern electronic devices. By means of a sophisticated development of X-ray scattering, researchers at the Paul Scherrer Institute PSI have now been able to track down the cause of this transition: electrons around the oxygen atoms are rearranging.
Christian Rüegg has been awarded a prestigious Consolidator Grant from the European Research Council (ERC). With this funding he will continue to investigate how the smallest magnetic building blocks of matter interact.
This fall, the time has come: The Energy System Integration Platform at the Paul Scherrer Institute PSI goes into operation. Today, in the framework of the double conference Networked Energy Research Switzerland, it was presented to the media and around 150 representatives from politics, industry, and science.
Thanks to an ultramodern research method, scientists have successfully looked inside transformers and observed the magnetic domains at work in the interior of a transformer’s iron core. Transformers are indispensable in regulating electricity both in industry and in domestic households. The current research results show that the new examination method can be profitably applied to develop more efficient transformers.
Proteins are indispensable building blocks of life. They play a vital role in many biological processes. Researchers have now been able to show how the ultrafast processes by which proteins do their work can be studied with free-electron X-ray lasers such as SwissFEL at the Paul Scherrer Institute PSI. Free-electron X-ray lasers generate extremely short and intense pulses of X-ray light. Currently there are just two such facilities in operation, worldwide. The results were published in the scientific journal Nature Communications.
The deuteron — just like the proton — is smaller than previously thoughtThe deuteron — one of the simplest atomic nuclei, consisting of just one proton and one neutron — is considerably smaller than previously thought. This new research finding fits with a 2010 study in which, similarly, the proton was measured at the Paul Scherrer Institute and, likewise, a smaller value than expected was found. The result from 2010 formed the basis for what has been known since then as the proton radius puzzle.
Researchers at the PSI have developed a detector called POLAR. It is designed to search out and investigate extreme eruptions of energy from the depths of the universe. This coming September, POLAR will be launched into orbit with a Chinese space mission.
Despite its great potential, solar energy still faces one big problem: the sun doesn’t always shine and its energy is hard to store. Now, researchers at the Paul Scherrer Institute PSI and the ETH Zurich have unveiled a chemical process that uses the sun’s thermal energy to convert carbon dioxide and water directly into high-energy fuels: a procedure developed on the basis of a ground-breaking material combination of cerium oxide and rhodium.
Researchers at the Swiss Paul Scherrer Institute PSI and ETH Zurich have developed a simple and cost-effective procedure for significantly enhancing the performance of conventional Li-ion rechargeable batteries. Whether in wristwatches, smartphones, laptops or cars, the use of rechargeable batteries will be optimized in all areas of application, considerably extending storage capacity as well as cutting down charging times.
Researchers have shown how fine particles are formed from natural substances in the atmosphere. These findings will improve our knowledge about clouds in the pre-industrial era and thus will contribute to a more accurate understanding of both the past and future evolution of our climate.
At the PSI, the exact structure of proteins is deciphered in the standard way, with X-rays. Now two PSI researchers have used a clever trick to advance this method further: Instead of pinning down the proteins, they are studying them within a levitating drop of liquid.
Chemists at ETH Zurich and the Paul Scherrer Institute have found a new, direct way to convert gaseous methane into liquid methanol. This offers industry the interesting prospect of using the gas, rather than simply burning it off, as is currently the case.
The Weyl fermion, just discovered in the past year, moves through materials practically without resistance. Now researchers are showing how it could be put to use in electronic components.
A picture-perfect example of how basic research makes concrete contributions to the economy is the company DECTRIS — a PSI spin-off founded in 2006 and already highly successful. The latest development from DECTRIS is a detector called EIGER, which is used for X-ray measurements at large research facilities. There EIGER contributes, among other things, to the search for new drugs.
Measuring the rarity of a particle decayIn the so-called MEG experiment at the PSI, researchers are searching for an extremely rare decay signature from a certain kind of elementary particles known as muons. More precisely, they are quantifying its improbability. According to their latest number, this decay occurs less than once in 2.4 trillion events. By means of this result, theoretical physicists can sort out which of their approaches to describing the universe will hold up against reality.
Im Januar und Februar 2016 wurden unter strengen Sicherheitsvorkehrungen rund 20kg Plutonium im Eigentum des Bundes in die USA transportiert. Es handelt sich dabei um Material, das seit den 1960er Jahren auf dem Areal des heutigen Paul Scherrer Instituts (PSI) gelagert worden war. Das Plutonium stammte aus wiederaufbereiteten Brennstäben des von 1960 bis 1977 betriebenen Forschungsreaktors Diorit. Der Bundesrat beschloss 2014 im Rahmen des Nuclear Security Summit-Prozesses, das Plutoniumlager aufzulösen und damit zur weltweiten Sicherung von Nuklearmaterial beizutragen.This news release is only available in French and German.
Researchers at the Paul Scherrer Institute have produced large numbers of detailed models of the Matterhorn, each one less than a tenth of a millimetre in size. With this, they demonstrated how 3-D objects so delicate could be mass-produced. Materials whose surface is covered with a pattern of such tiny 3-D structures often have special properties, which could for example help to reduce the wear and tear of machine parts.
New insights into the workings of important drug receptorsMany medical drugs operate on specific receptors located in the outer walls of our body’s cells. One of these is called the beta-1 adrenergic receptor. Among other things, it is responsible for palpitation, the racing pulse that we feel with stage fright or infatuation. How it transmits signals to the cellular interior can now be revealed in detail. These findings could help scientists better understand many drugs' mode of action.