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33 results:
  • 11. 2014 Gerginov Phys Rev A.90 Initial atomic coherences and Ramsey frequency pulling  
    Date: 20.10.2014
    Percental score: 1 %
    2014 Gerginov Phys Rev A.90 Initial atomic coherences and Ramsey frequency pulling PHYSICAL REVIEW A 90, 033829 (2014) Initial atomic coherences and Ramsey frequency pulling in fountain  
  • 12. Report head of Division 2  
    Date: 15.01.2015
    Percental score: 2 %
    Report head of Division 2 Division 2 Electricity Electricity The “Electricity” Division deals with all aspects of the subject area Electricity and Magnetism and ensures, with its activities,  
  • 13. Frozen highly-charged ions for highest precision spectroscopy  
    Date: 13.03.2015
    Percental score: 7 %
    A team of researchers from the Max Planck Institute for Nuclear Physics in Heidelberg, the Physikalisch-Technische Bundesanstalt in Braunschweig and the University of Aarhus in Denmark demonstrated  
  • 14. PTB News 1/2011  
    Date: 11.06.2015
    Percental score: 2 %
    PTB News 1/2011, English edition, Issue June 2011 PTB News 1/2011 news 1/2011 The Science Newsletter of the Physikalisch-Technische Bundesanstalt High-precision 3D micrometrology Page 3 Scientific  
  • 15. New measuring quantities  
    Date: 22.03.2016
    Percental score: 16 %
    Department 6.3 In its report ICRU 95 the International Commission on Radiation Units and Measurements (ICRU) has proposed new quantities in radiation protection. The effects of a  
  • 16. Workshop "The Quantum Revolution in Metrology"  
    Date: 28.11.2017
    Percental score: 13 %
    The revised International System of Units, the SI, will rest on seven defining constants. To realize the SI units based on the defining constants, methods of quantum metrology will be used in many  
  • 17. Meeting of asphere specialists  
    Date: 05.02.2018
    Percental score: 9 %
    Specially manufactured aspheres Because of their complex geometry, aspheres – that is, non-spherically curved surfaces of optical elements such as mirrors or lenses – pose special challenges to the field of precision metrology.  
  • 18. Lecture strong fields  
    Date: 17.07.2018
    Percental score: 7 %
    Lecture strong fields Light-Matter Interaction I Lecture 12 Summer Term 2018 Andrey Surzhykov Robert Müller Gauge Transformations of the Time Dependent Schrödinger Equation Before we can talk  
  • 19. Homogeneous MR images  
    Date: 04.12.2018
    Percental score: 17 %
    Magnetic Resonance Imaging (MRI) at high magnetic fields up to 7 tesla allows a better image resolution, shorter measu-ring times and – thus – better diagnostics. A disadvantage is that, in the case  
  • 20. Using UV-C radiation to combat the coronavirus  
    Date: 01.12.2020
    Percental score: 10 %
    Dr. Peter Sperfeld performs measurements of UV-C radiation The Physikalisch-Technische Bundesanstalt (PTB) measured the internal irradiance of a prototype of an indoor UV-C air purification unit to gauge its effectiveness in neutralizing germs and viruses. A  
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