Public health component in building information modeling

A building information modelling (BIM) conception has established itself as an effective and practical approach to plan, design, construct, and manage buildings and infrastructure. Analysis of the governance literature has shown that the BIM-developed tools do not take fully into account the growing demands from ecology and health fields. In this connection, it is possible to offer an optimal way of adapting such tools to the necessary consideration of the sanitary and hygienic specifications of materials used in construction industry. It is proposed to do it through the introduction of assessments that meet the requirements of national sanitary standards. This approach was demonstrated in the case study of Revit® program

Towards Sub-Ångström Working Regime of the European X-Ray Free-Electron Laser: Simulations and First Experimental Results

SASE studies in the sub-ångström regime, using optimized electron beams, are carried out at varied energy levels according to the present state of the facility, that is, a pulsed mode operating with a 10 Hz repetition 0.6 ms-long bunch train with beam energies between 14 GeV and 17.5 GeV. From simulations nearly Millijoule-level SASE intensity is obtained at a photon energy of 30 keV at 16.3 GeV electron beam energy using a gain length of about 8 m. Experimentally this energy has been achieved with 300 µJ intensity at the EuXFEL at DESY. The setup for the machine and the photon beamlines to reach this point will be presented. The prospects to reach even higher photon energies will be illustrated

First Characterization of the Photon Beam at the European XFEL in July, 2017

North branch of the European XFEL, SASE1, produced first light on May 3rd, 2017, and XFEL operation has been gradually improved then. First characterization of the photon beam has been performed in July / August 2017, just before an official starting date of user experiments (September 1st, 2017). Energy of the electron beam was 14 GeV, bunch charge was 500 pC, photon energy was 9.3 keV. With photon diagnostics available at that time (X-ray gas monitor (XGM) and FEL imager) we measured the gain curve and traced evolution of the FEL radiation mode along the undulator. An important conclusion is that experimental results demonstrate reasonable agreement with baseline parameters. Developed techniques of the photon beam characterization also provided solid base for identification of the problems and means for improving SASE FEL tuning and operation