Three days for exchange between Users of BESSY II and BER II and HZB-scientists
Usermeetings offer a platform for exchange and communication. © M-Setzpfand/HZB
The Seventh Joint BER II and BESSY II User Meeting will take place at WISTA, Berlin-Adlershof on December 9th and 10th, the neutrons session are at Berlin-Wannsee on December 11th. The Verein Freundeskreis Helmholtz-Zentrum Berlin e.V. will bestow the Innovation Award and the Ernst-Eckart-Koch Prize. Public highlights are a science slam on Wednesday, 18:30 and the public lecture by David Cahen on the power of science to bridge ideological differences (“Science: Bridge over troubled water“, Thursday 17:00). The public lecture and the science slam are open for everybody.
Wednesday 9th December: WISTA-Centre, Adlershof
- The Synchrotron Day starts at 14:00: HZB scientist will present new developments at BESSY II, followed by the Young Scientists Session and for the first time:
- a HZB Science Slam (18:30).
Thursday 10th December: WISTA-Centre, Adlershof
- The Science Day starts with a keynote lecture by Petra de Jongh (University Utrecht) about the “stability of supported transition metal catalysts”.
- The next sessions are dedicated to short oral presentations about (user)-research at BESSY II, ranging from the analysis of spins in diverse materials, protein crystallography to the geology of meteorites.
- The Innovation Award and the Ernst-Eckart-Koch Prize will be awarded by the Verein Freundeskreis Helmholtz-Zentrum Berlin e.V. during the afternoon.
- At 17:00 David Cahen, head of the optoelectronic materials group at Weizmann Institute of Science, will give a public lecture, sharing his thoughts on science as a bridge over huge divides such as ideologies.
- The Poster Session accompanied by the traditional “Berlin Buffet”, kindly sponsored by the companies represented in the industrial exhibition, will conclude the evening.
Friday, 11th December: LMC-Campus, Wannsee:
- The Neutron day begins with a Neutron session, where HZB scientists will give short overviews about new options and improvements, including the presentation of the High Field Magnet.
- In the Young Scientists Session and during the Poster Session, user research will be presented.
The public lecture and the science slam are open for everybody.
More Information on the User meeting:
Download the detailed programme here.
- Green fabrication of hybrid materials as highly sensitive X-ray detectorsNew bismuth-based organic-inorganic hybrid materials show exceptional sensitivity and long-term stability as X-ray detectors, significantly more sensitive than commercial X-ray detectors. In addition, these materials can be produced without solvents by ball milling, a mechanochemical synthesis process that is environmentally friendly and scalable. More sensitive detectors would allow for a reduction in the radiation exposure during X-ray examinations.
- An elegant method for the detection of single spins using photovoltageDiamonds with certain optically active defects can be used as highly sensitive sensors or qubits for quantum computers, where the quantum information is stored in the electron spin state of these colour centres. However, the spin states have to be read out optically, which is often experimentally complex. Now, a team at HZB has developed an elegant method using a photo voltage to detect the individual and local spin states of these defects. This could lead to a much more compact design of quantum sensors.
- Solar cells on moon glass for a future base on the moonFuture settlements on the moon will need energy, which could be supplied by photovoltaics. However, launching material into space is expensive – transporting one kilogram to the moon costs one million euros. But there are also resources on the moon that can be used. A research team led by Dr. Felix Lang of the University of Potsdam and Dr. Stefan Linke of the Technical University of Berlin have now produced the required glass from ‘moon dust’ (regolith) and coated it with perovskite. This could save up to 99 percent of the weight needed to produce PV modules on the moon. The team tested the radiation tolerance of the solar cells at the proton accelerator of the HZB.