News HZB Synergy

Research Highlights

  • A funny woolly hat protects the helmet from scratches (Image: Silvia Zerbe/HZB).)11.10.2017

    Knight helmets under the neutron beam

    It happens quite often that Nikolay Kardjilov has interesting guests. The HZB expert on neutron tomography is in demand worldwide, even when it comes to investigating valuable cultural treasures. Just recently, four knight helmets were waiting for its analysis. [...].

  • Image: HZB28.08.2017

    Solar hydrogen production by artificial leafs

    Scientists analysed how a special treatment improves cheap metal oxide photoelectrodes. [...].

  • Sequential tomography of a lupin root (yellowish green) after deuterated water (D2O) was introduced from below. The rising water front (H2O, dark blue) is displaced by the D2O from below over the course of time. The complete sequence can be viewed as a video (Created by Christian Tötzke, University of Potsdam)25.07.2017

    User research at BER II: Lupin roots observed in the act of catching water from soil – so far too quick for 3D views

    Lupins not only produce colourful blossoms but also nutritious beans rich in proteins. Just how these plants draw water approaching their roots in soil has now for the first time been observed in three dimensions by a University of Potsdam team at the HZB-BER II neutron source in Berlin. To accomplish this, they worked with the HZB imaging group to improve the temporal resolution of neutron tomography more than onehundred-fold so that a detailed 3D image was generated every ten seconds. This ultrafast neutron tomography is generally suitable as well for analyses of dynamic processes in porous materials. [...].

  • SEM-images of 3D graphene with different pore size (a,b,c, scale = 1μm). Optical properties (d,e,f) change with pore size (Credit: 10.1038/ncomms14885)18.05.2017

    Three-dimensional graphene: experiment at BESSY II shows that optical properties are tuneable

    An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. The experiments show that the plasmonic excitations (oscillations of the charge density) in this new material can be precisely controlled by the pore size and by introducing atomic impurities. This could facilitate the manufacture of highly sensitive chemical sensors. [...].

Neutrons

  • A funny woolly hat protects the helmet from scratches (Image: Silvia Zerbe/HZB).)11.10.2017

    Knight helmets under the neutron beam

    It happens quite often that Nikolay Kardjilov has interesting guests. The HZB expert on neutron tomography is in demand worldwide, even when it comes to investigating valuable cultural treasures. Just recently, four knight helmets were waiting for its analysis. [...].

  • Sequential tomography of a lupin root (yellowish green) after deuterated water (D2O) was introduced from below. The rising water front (H2O, dark blue) is displaced by the D2O from below over the course of time. The complete sequence can be viewed as a video (Created by Christian Tötzke, University of Potsdam)25.07.2017

    User research at BER II: Lupin roots observed in the act of catching water from soil – so far too quick for 3D views

    Lupins not only produce colourful blossoms but also nutritious beans rich in proteins. Just how these plants draw water approaching their roots in soil has now for the first time been observed in three dimensions by a University of Potsdam team at the HZB-BER II neutron source in Berlin. To accomplish this, they worked with the HZB imaging group to improve the temporal resolution of neutron tomography more than onehundred-fold so that a detailed 3D image was generated every ten seconds. This ultrafast neutron tomography is generally suitable as well for analyses of dynamic processes in porous materials. [...].

Photons

  • Guiding the X-rays from Undulator UE48 in the BESSY II experimental hall to the CAT experiment in the Energy Materials in-situ Lab EMIL@BESSY (Photo: HZB/David Ausserhofer).12.10.2017

    Breakthrough at EMIL: First undulator radiation in the CAT experiment

    When the EMIL laboratory (Energy-Materials In-Situ Laboratory Berlin) was ceremoniously inaugurated a year ago in the presence of Federal Minister for Research Johanna Wanka, it was a major milestone for energy materials research at HZB. Ever since, HZB has been building the system that will bring X-ray beams all the way from BESSY II to the EMIL apparatuses. Until the BESSY light is fully available, the scientists have been working with X-rays from a conventional laboratory source. Now, the beamline operators have succeeded in guiding the X-rays from Undulator UE48 in the BESSY II experimental hall to the CAT experiment in the EMIL laboratory. There, it was quantitatively measured using a focus measuring chamber. [...].

  • SEM-images of 3D graphene with different pore size (a,b,c, scale = 1μm). Optical properties (d,e,f) change with pore size (Credit: 10.1038/ncomms14885)18.05.2017

    Three-dimensional graphene: experiment at BESSY II shows that optical properties are tuneable

    An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. The experiments show that the plasmonic excitations (oscillations of the charge density) in this new material can be precisely controlled by the pore size and by introducing atomic impurities. This could facilitate the manufacture of highly sensitive chemical sensors. [...].

  • Comparison of the same specimen at the old Beamline (left) and the new HZB-XM-Beamline (right) (Credit: HZB).03.05.2017

    X-Ray microscopy: HZB-TXM is back in operation

    The X-ray microscope (HZB-TXM) is back in operation. The TXM offers significantly better quality images compared to the former X-ray microscopy station. [...].

Events and Dates

  • The HZB experiment EDDI at BESSY II (Credit: HZB).12.10.2017

    Announcement: EDDI (farewell) Workshop

    After 14 years of successful user operation, EDDI will shutdown in August 2018. We decided to take this as an occasion to organize an EDDI (farewell) workshop. [...].

  • 01.09.2017

    CALIPSOplus - Convenient Access to Light Sources Open to Innovation, Science and to the World.

    The EU is providing ten million euros in funding for the project CALIPSOplus, submitted by 19 European light sources. The project consortium, of which Helmholtz-Zentrum Berlin is a member, kicked off on May 2017. CALIPSOplus is aimed at promoting the international exchange of scientists and transnational access to the light sources in Europe. Other priorities are to integrate the relatively less active regions of Europe and to initiate research projects with small and mid-sized companies. [...].

General

  • A banana contains naturally occuring radioactive material in <br /> the form of potassium-40 (Photo: Creative Commons License)01.09.2017

    Do you know the "Banana equivalent dose"?

    Banana equivalent dose (BED) is an informal measurement of ionizing radiation exposure, intended as a general educational example to compare a dose of radioactivity to the dose one is exposed to by eating one average-sized banana. Bananas contain naturally occurring radioactive isotopes, particularly potassium. [...].

  • This optical zone melting furnace produces large single crystals (Credit: M. Setzpfandt/HZB).19.06.2017

    New at Campus Wannsee: CoreLab Quantum Materials

    HZB has expanded its series of CoreLabs for energy materials research. In addition to the five established CoreLabs, it has now set up a CoreLab for Quantum Materials. A research team from the HZB Institute for Quantum Phenomena in New Materials is responsible for the CoreLab and its modern equipment. The CoreLab is also open to experimenters from other research institutes.
    [...].

  • Prof. Dr. Bernd Rech becomes provisional Scientific Director of the HZB on May 1, 2017 (Photo: HZB).27.04.2017

    Prof. Dr. Bernd Rech becomes provisional Scientific Director of the HZB on May 1, 2017

    Following the succession of long-serving Scientific Director Prof. Anke Kaysser-Pyzalla to President of TU Braunschweig, the Supervisory Board of the Helmholtz-Zentrum Berlin has appointed Prof. Bernd Rech as provisional Scientific Director. He assumes this position as of May 1, 2017. Bernd Rech has headed the Institute for Silicon Photovoltaics at the HZB since 2006 and is highly esteemed worldwide as an expert in renewable energies. [...].

  • (Photo: Pixabay)23.01.2017

    Gastronomy and Shops in Adlershof

    Recently we have been asked if we could provide some information about Restaurants and Shops in Adlershof. [...].