After a shut down of nearly one and half year due to upgrade and refurbishment work, the research reactot BER II at Helmholz-Zentrum Berlin is back in operation. The nominal power of 10 MW was reached on March 29. and the restart of the neutron instruments has started. [...].
The users will miss him. After more as 30 years of scientific and adminstrative work at BESSY Walter Braun, Head of HZB User Coordination, is leaving to retirement. [...].
On Feb. 1 2012 the follow-up of the NMI3 access programme for support of European users for access to European muon and neutron sources has been started. The programme supports scientific access to 8 facilities within the next four years which will allow thousends of researches to use neutrons and muons in their work. [...].
A novel magnetic valve for electronic devices might be be realistic by recent research done by colleagues from Bochum, the Netherlands and researchers from the Helmholtz-Zentrum Berlin (HZB). The advantage of the new structure: data remain intact even after the electric current has been switched off and the memory can be re-written more or less indefinitely. [...].
The 2nd ESS Science & Scientist Meeting is approachung soon on April 19-20, 2012 in Berlin. The meeting will be a major event to present the scientific perspectives of the new planned European Spallation Source at Lund, Sweden. It aims to facilitate interactions between ESS and the broad scientific community on the scientific programme and instrumentation that the ESS and its partners will build for Europe. [...].
An international workshop on "New Opportunities for Research on Hard and Soft Matter Nanostructures using Neutron Reflectometry" is jointly organized on April 17-18, 2012 in Berlin by the Jülich centre for Neutron Science (JCNS), The Helmholtz-Zentrum Geesthacht (HZG) and the Helmholtz-Zentrum Berlin (HZB). [...].
With the beginning of August 2012 BESSY II will provide a new operation modus called TOP-UP operation. This change requires new, more stringent radiation safety measures, which will be valid for at least one year. Please read carefully these regulations. [...].
The HZB user coordination invites you to submit proposals for the next joint proposal round for our large scale facility BESSY II. The deadline for proposal submission is March 1 2012. Due to the on-going shut down of the BER II neutron facility no proposal applications can be offered to users in this Call.
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The annual Joint BER II and BESSY II User Meeting has been a highly successful event with more as 400 users and instrument supervisors metting and talking for three days from 30 November to 2 December. The highlight was the “Science Day” on 1 December in the Adlershof Bunsen Room, flanked by the “Neutron Day” on 30 November in Wannsee and the “Synchrotron Day” on 2 December in Adlershof. [...].
Extreme Environment Diffractometer (EXED) built in the second neutron guide hall of the BER II research reactor is a dedicated instrument that will host the 25 Tesla High Field Magnet (HFM). [...].
The cold neutron triple axis spectrometer V2/FLEX is a core instrument in the neutron user programme run at BER II. The upgrade is to increase the available flux on the sample and to enhance FLEX’s polarized neutron capabilities. [...].
A novel strategy for efficient growth of nitrogen-doped
graphene (N-graphene) on a large scale from s-triazine molecules is presented. The growth process has been unveiled in-situ using time dependent photoemission. [...].
BioRef is a versatile novel time-of-flight reflectometer featuring a sample environment for in situ infrared spectroscopy at the reactor neutron source BER II of the Helmholtz Zentrum Berlin (HZB). After two years of design and construction phase the instrument has recently undergone commissioning and is now available for specular and off-specular neutron reflectivity measurements. [...].
Near-edge X-ray absorption spectroscopy (NEXAFS)1 is an essential analytical tool in material science. Combining NEXAFS with scanning transmission X-ray microscopy (STXM) adds spatial resolution and the possibility to study individual nanostructures. We describe a full-field transmission X-ray microscope (TXM) that generates highresolution, large-area NEXAFS data with a collection rate two orders of magnitude faster than is possible with STXM. [...].
The Third Joint BER II and BESSY II Users' Meeting will be held from November 30 to December 2, 2011 in Berlin-Wannsee and Berlin-Adlershof. It will start with a "Neutron Instrumentation Day" at the Lise-Meitner Campus in Berlin-Wannsee and continue with a "Science Day" and a "Synchrotron Radiation Intrumentation Day" at the Wilhelm-Conrad-Roentgen Campus in Berlin-Adlershof. [...].
The European Conference on Neutron Scattering was a great success for the European neutron community. More as 700 participants meet between July 17 to July 22 2011 in Prague. Nearly 200 oral presentations and about 500 posters gave an impressive overview of neutron scattering used in all scientific areas. [...].